Professional Pursuit Airframe And General

Front 1

1. What is the color of an AN steel flared-tubedfitting?

Back 1

1. Black

Front 2

2. What supports bending loads on a semi-monocoque fuselage?

Back 2

2. Longerons and stringers

Front 3

3. What is the purpose of schematic drawings? 4. The stud length of Dzus fasteners is measured in what increment 5. When is and aircraft considered to be at its empty weight 6. In a ring tapping test, what does a dull thud indicate 7. What quantity of fuel is used when computing “empty weight”? 8. What speed & pressure is used for drilling stainless steel 9. How are AN fittings recognized from the older AC fittings 10. What is transverse pitch 11. What documents list an aircrafts maximum weight 12. What is the function of the flutes on a twist drill 13. How often does the FAA issue AD’s 14. What is the tip angle of a twist drill used for Plexiglas 15. What should be clearly noted on an aircraft weighing form 16. How is a pre-preg lay-up generally cured 17. What type of drawing shows required wire sizes 18. What is the chief benefit of honeycomb panels 19. Where can you find the method of leveling an aircraft 20. Name three factors that can cause crazing in plastic windows 21. The useful load of an aircraft include what 22. What is meant by a catalyzed resins “pot life” 23. What is the purpose of zone numbers on blueprints 24. The markings on the head of Dzus fasteners identify what 25. What tool is used to calibrate a micrometer 26. How can a deteriorated hose cause spongy brake action 27. What process hardens metal by introducing nitride 28. What controls an airplane directionally on its vertical axis 29. The type of drawing most often used in parts catalogs are 30. Why are conventional rivets not used in composite structures 31. How does the CG range of helicopters compare to airplanes 32. What technique repairs shallow scratches in steel 33. The major source of weight change for aging aircraft is what 34. When installing window with bolts, how tight should the nuts be 35. How are magnesium engine parts cleaned 36. What is the likely effect of using the wrong hydraulic fluid 37. Who is authorized to perform a 100 hour inspection 38. Why are fuel system components electrically grounded 39. What agent is never used to extinguish a magnesium fire 40. How are bladder fuel tanks treated for extended periods of non use 41. What is “elasticity” 42. Why do fuel tanks have baffles or compartments 43. How far in front or behind an idling jet engine is hazardous 44. What does the cam in a nose gear shock strut do 45. What increments are rivet lengths measured in 46. Why must aluminum wire be stripped very carefully 47. What measures clearance between piston rings an ring lands 48. What does the letter H on an air valve core indicate 49. In weight and balance, what is the distance from the fulcrum to an object 50. What is the chief purpose of e-glass 51. What is the inside diameter of 3/4” .072 5052-0 aluminum tube 52. What marking identifies a 2117 AD rivet 53. How deep of a nick may be repaired on aluminum tube 54. What rivet type is used for riveting nickel steel alloys 55. What tank size (in cubic feet) holds 60 gallons of fuel 56. Where does warm cabin air come from on small piston aircraft 57. What type of type of tube is used in high pressure hydraulic systems 58. Define “minimum bend radius” 59. What knot type is best for tying down aircraft 60. What two calculations are made when bending sheet metal 61. What does the term “cold flow” describe 62. From what does a monocoque fuselage derive its strength 63. What causes hydraulic lock in radial engine 64. Where can inflation pressure for an aircraft tire be obtained 65. Caustic cleaning products used on aluminum can cause what 66. Name 4 components of a basic hydraulic system 67. What is the electrolyte of a Ni-Cad battery made of 68. What the purpose of a drip gauge in large aircraft tanks 69. What are the 2 types of jet fuel now in use 70. What type oil is used in vapor cycle cooling systems 71. When do IA privileges expire 72. How do you prevent corrosion inside a repaired honeycomb structure 73. When and why does a Ni-Cad battery emit gas 74. What is the minimal test strength of grade-A cotton fabric 75. Which hose material is used with phosphate-ester hydraulic fluids 76. Where is the radius of a bend typically measured 77. What are schematic drawings best suited for 78. Name two ways to inspect fiberglass honeycomb for entrapped water 79. At what temperature does a hydrometer reading not require corrosion 80. What is a cantilever wing 81. The principle item shown in a hydraulic system schematic is 82. what is the common use of Rivnuts 83. the drawing in which subassemblies are shown together is 84. why are aluminum fasteners not used in carbon fiber 85. What is the identification mark of a NAS close tolerance bolt 86. How far may fairleads deflect the angle of a cable 87. What is Bernoulli’s principle regarding fluids 88. After welding magnesium what is done to maintain strength 89. Who is certified to perform a 100 hour inspection 90. How do you check for broken wires on a cable 91. What results if water is added to a low charged Ni-Cad battery 92. How is the strength of aircraft fabric classified 93. What is the correct way to connect a voltmeter in a circuit 94. What provides the strength in a well prepared wood splice 95. typically, bolt heads are installed In what direction 96. Where is fuselage station number 126 located 97. Flaking of metal due to delamination is called 98. What is always done before a pressurized reservoir is opened 99. How much slack is allowed in flexible lines at installation 100. What causes smoky residue streaming back from rivets 101. What is total piston displacement of an engine 102. What removes phosphate hydraulic fluid from tires 103. What is detonation of fuel 104. Whats the first step of removing an accumulator from an aircraft 105. If a metal shatters when bent it is deemed to be 106. What is the maximum vapor pressure of aircraft fuel 107. What is the specific gravity of a charged lead acid battery 108. What are 2 reasons why Prist is added to jet fuel 109. What is the fractional equivalent of .0625 110. What happens when refrigerant – 12 passes an open flame 111. What are the 2 types of drag affecting airplanes 112. What is the purpose of flapper valves in integral fuel tanks 113. Who records an AD compliance in a aircrafts records 114. What is the maximum bend radius of coaxial cable 115. What causes galvanic corrosion 116. How can you tell if a cooling system has enough Freon 117. How do you check for hydraulic lock in a radial engine 118. What is the purpose of chines on some nose gear tires 119. What is the vernier scale graduation on a micrometer 120. Why are new tire tubes inflated, deflated, then re-inflated 121. Who is authorized to perform an annual inspection 122. What must be done to a rudder after repair or recovering 123. What increments are rivet diameters measured in 124. What does the commutator on DC generators do 125. What is total piston displacement of an engine 126. What rmoves phosphate hydraulic fluid from tires 127. In what direction should airplanes be tied down 128. How often can a tire with a good body and bead be recapped 129. What is the cube 8 130. What does a mixing valve do in a compressor bleed system 131. Where is acceptable for a manufacturer to locate the datum 132. What cleaning agent is used before bonding glass structures 133. Sketches are best drawn on what type of paper 134. The measure of a fluids resistance to flowing is called what 135. If an induction fire occurs when starting a piston engine you should 136. How long after a flight should you wait to check tire pressure 137. What is “MAC” as used to find an aircrafts CG range 138. What is the disadvantage of aromatic aviation fuels 139. Where do you find standard torque values of nuts and bolts 140. How do you tell if threaded rod ends of a push/pull rube are properly inserted 141. 65 items are what percent of 80 items 142. What color are aviation high pressure oxygen cylinders 143. The transfer of electricity without a connection is called what 144. Where is the acceptable wood species list found 145. Forward biasing of a solid state device will cause it to 146. Why is an i-beam wood spar routed 147. What is the mathematical value of pi 148. How strong is a properly swaged terminal compared to the cable itself 149. The side clearances of pistons are measured with what 150. How can you tell if brakes are properly bled 151. How can you tell if a part cools too quickly after welding 152. When may an aircraft due an annual inspection be flown 153. What is air pressure at sea level in standard conditions 154. What must every fuel quantity indicator be calibrated to read 155. What does a red & green flashing light from a control tower mean 156. How many foot pounds equal 360 inch pounds 157. What are the three classes of working drawings 158. What paint defect is caused by too much humidity 159. What is another name for precipitation heat treatment 160. How is ice kept from forming on the pitot tube 161. When different rated capacitors are connected in parallel, the total capacitance equals 162. When does a stall warning system begin to warn the pilot 163. What effect will 100LL avgas mixed with jet fuel have on a turbine engine 164. What direction does the open side of a chevron seal face 165. What is the first step of the procedure to sketch a wing skin repair 166. What is the usual cause of runs on aircraft finishes 167. What is the basic unit of heat in the metric system 168. Why is chemical rain repellent not used on a dry windshield 169. What is the grip length of a bolt 170. With which system is differential control associated 171. What color is a fluid line containing hydraulic fluid 172. What device increases and decreases AC voltage 173. How is galvanic corrosion between dissimilar metals prevented 174. What is the purpose of a cabin pressure dump valve 175. If dye penetrant indications are unclear, the probable cause is 176. What 2 gasses are used for shielding when TIG welding 177. What is meant by “permanent ballast” 178. What is the advantage of pressure fueling systems 179. How many watts of current equals one horsepower 180. Oxygen systems in non-pressurized aircraft are usually what type 181. How are owners notified of effects found in a inspection 182. What causes magnetic deviation in a compass 183. To determine power needed to do a job what must we know 184. What part of an autopilot applies torque to control surfaces 185. What is a hung start on a turbine engine 186. Whats the purpose of a bumper ring inside an oleo shock 187. What indicates a poorly torque cell link connection on a Ni-Cad battery 188. When and how is finishing tape applied on fabric aircraft 189. What type flexible hose can be used with almost all liquids 190. Why are iron cores of induction coils laminated 191. What type of metals are “normalized” 192. What effect does “washing in” a wing have on performance 193. What composite material is used when toughness is the prime concern 194. What type extinguisher is best for both cabin and engine fires 195. What is the handle color of aviation snips that cut left 196. What is the accepted way to attach a terminal to a wire 197. What drill size is used before tapping for a 10-32 thread 198. What are electric junction boxes In fire zones made of 199. What must be known to determine “arm “ in W&B computations 200. How is rain erosion typically repaired on fiberglass laminates 201. If pressure on a liquid is tripled how will its volume change 202. What do red lines on an oil pressure gauge indicate 203. What regulation discusses instrument range markings 204. What is the purpose of an ILS localizer 205. What is “zero fuel weight” 206. What cutting fluid is best when machining composite parts 207. What is an airworthiness directive 208. What two things does a bourdon tube measure 209. What kind of energy is that in a spinning flywheel 210. What should RPM do when mixture is pulled to idle cut-off 211. If a stall strip is missing on one wing, the result will be 212. Why is radio equipment electrically bonded to an airframe 213. In what heat treat state does steel have its lowest strength 214. What is the primary purpose of stall strips 215. What is the marking on the head of a standard AN bolt 216. Wear on one side of a pulley groove indicates what 217. What heat treat process removes hardness and brittleness 218. Why is center of lift typically located aft of center of gravity 219. What can help to find a minute crack with dye penetrant inspection 220. Why are thick aluminum plates preheated before welding 221. How is a flooded carbureted engine cleared of excess fuel 222. How is heat buildup best avoided in aircraft tires 223. What 3 ways are files classified 224. How can you tell if a transformer winding has shorted turns 225. What tool can determine piston pin out-of-round wear 226. What will internal leakage in a brake master cylinder cause 227. What type best determines the quality of a composite repair 228. Why should a weld bead not be filed smooth 229. What test method can show heat treat condition of a metal 230. Why is a carburizing flame avoided when welding steel 231. What does “PHDAN” mean on a gas or fluid line 232. Why is a stream of helium gas used when TIG welding 233. What effect does spilled mercury gave on aluminum 234. What type of oxygen system requires the least maintenance 235. How is atmospheric pressure measured 236. What type fuel quantity system includes a signal amplifier 237. What is the purpose of cadmium plating on AN bolts 238. How does a voltage regulator control generator output 239. What are the main advantages of high aspect ratio 240. Where is a VOR antenna located on an airplane 241. What is the hypotenuse of a right triangle 242. What is the color code for aircraft fire extinguisher lines 243. What is the likely cause of a hot start of a turbine engine 244. Excess wear in a tires center tread indicates what 245. Where are fatigue cracks most likely to form 246. How does a helicopter in cruse flight change direction 247. Name 3 heads normally included in a combination set 248. How much resistance is allowed in a bonding connection 249. In dye penetrant inspection, what does the developer do 250. What does tracking the main rotor blades determine 251. When priming a fuel injected engine where is the mixture lever set 252. If the left brake drags excessively the likely cause is what 253. What is “aspect ratio” of a wing 254. What type antenna is used for VHF communication 255. How is a part checked for flatness 256. What will cause parking brakes to continually creep off 257. What test checks turbine fuel for microscopic contaminants 258. Who is authorized to repair an aircraft instrument 259. In what 3 units are torque wrenches calibrated 260. If a voltmeter is connected with reversed polarity, how will it read 261. What is the core material of Alclad 2024-T4 262. How will the right aileron move if the control stick moves left 263. What type of chart helps minimize troubleshooting time 264. What is the purpose of a fuel tank sump 265. In aircraft material standards, what does “NAS” stand for 266. How does a magnetic brake of a motor armature operate 267. What is meant by “undrainable fuel” 268. What is the function of a vortex generator 269. What is done if a tire comes in contact with oil or grease 270. What does a basic air-cycle cooling system consist of 271. Which part is destroyed be corrosion the cathodic or anodic 272. What type of oxygen system uses a rebreather mask 273. What is “absolute humidity” 274. How is a tachometer on a turbine engine calibrated 275. What tool is used to find the center of a cylindrical part 276. What do the metering pins in oleo shock struts do 277. Circular magnetization can detect what defects 278. Whats the function of a helicopters freewheeling unit 279. What is a scalene triangle 280. What type fire extinguisher is used for a brake fire 281. What is done in the event of a turbine engine hung start 282. Whats the pressure source for aircraft power brakes 283. How does a metal become “strain” or “work” hardened 284. What type of flaps increases wing area and changes camber 285. What are two results of annealing 286. In which direction is the vertical fin of a single engine aircraft offset 287. What does the first digit of “2024 aluminum” mean 288. Which is greater, an ailerons upward or downward travel 289. What is the purpose of the pur aluminum coating o Alclad 290. How is wing twist on a metal wing checked 291. Why Is hemp rope not used to tie down aircraft 292. How often should aircraft tire pressure be checked 293. What hp is produced by a 98 hp engine running at 75% hp 294. If oxygen bottle pressure falls below minimum, what happens 295. What fraction is equal to 0.025 296. Why is hospital oxygen not used in aircraft systems 297. How will temperature & humidity affect the landing speed of an aircraft 298. Name 3 instruments controlled by gyroscopes 299. How does an airplanes wing produce lift 300. When must an FCC license be displayed in an aircraft 301. How can a damaged anodized surface be restored 302. What is used to flush MIL 5606 hydraulic fluid 303. Why are household cleaners not used for cleaning aircraft 304. What color is MIL H 7644 hydraulic fluid 305. Why must every run of rigid tubing include at least one bend 306. How are aircraft aluminum alloys typically hardened 307. What are 3 forms of wood used for aircraft structures 308. What must be equal when AC generators operate in parallel 309. Why are unbounded clamps used when securing wire bundles 310. How are engine mount members typically repaired 311. What is a “butt line” 312. How is carburetor ice controlled in small aircraft 313. Electrically depositing a film of aluminum hydroxide on metal is called 314. Whats the main purpose of a pressurized hydraulic reservoir 315. Corrosion in most metals is a result of what tendency 316. When are heat exchangers required in hydraulic systems 317. How can a part have increased resistance to stress cracking 318. How often are standard weight oxygen cylinders tested 319. Describe the head of a planishing hammer 320. Whats the most accurate type of frequency measuring instrument 321. In magnetic particle testing, flaws are found in what direction to the flux 322. Why is aluminum annealed 323. What is dew point 324. What system counteracts dutch roll in swept wing aircraft 325. What 4 conditions must be met for corrosion to occur 326. How is a worn hydraulic pump shaft seal detected 327. What drawing type shows the internal construction of a part 328. Why is phosphoric acid used in wash primers 329. What solvent is best for cleaning oily deposits before painting 330. What is used to flush phosphate type hydraulic fluids 331. What does the amount of electricity a capacitor can store depend on 332. What is meant by a wet vacuum pump 333. Where is compliance with Ads normally indicated 334. What is used to lubricate oxygen system threaded fittings 335. Name two metals that are the most cathodic 336. How are porous paper filter elements typically serviced 337. A fuel that does not vaporize easily enough can cause what 338. What type seals are used with skydrol 500 hydraulic fluid 339. Name 2 types of magnetic particle inspection 340. Whats the purpose of a rectifier in an electrical system 341. What types of nondestructive testing are used for aluminum castings 342. Where is flux applied when oxyacetylene welding aluminum 343. What factor causes the greatest flow of liquid through an orifice 344. Name 3 instruments connected to a pitot static system 345. What is meant if oxides are found more than ½ inch from a weld 346. What would happen if a brake cylinder piston return spring broke 347. How do we find the displacement of a piston 348. How are hydraulic reservoirs pressurized 349. What are the six basic shapes to illustrate an object in a sketch 350. What is used to remove grease from fabric prior to doping 351. What are general aviation airworthiness alerts 352. How is lateral stability maintained when jettisoning fuel 353. What does a diode do 354. How are rubber deicer boots cleaned 355. How is the weight of air affected as humidity increases 356. What does the green arc on a CHT gauge indicate 357. Where is information on old and rare aircraft found 358. Why is a gasket used between an antenna and aircraft skin 359. What is the benefit of winglets on a wings tip 360. Where is the ELT transmitter normally located 361. How is a swaged terminal checked for proper swaging 362. How is a generator cooled during ground operations 363. Ultrasonic inspection is best used for what 364. What does the size of the torch tip determine when welding 365. On what bolt positions ar fiber type self lock nuts not used 366. What tool checks for properly swaged cable ends 367. A line to show an edge which is not visible is called a 368. Why is aluminum pigment used in aircraft dope 369. What solvent is best for acrylics and rubber 370. What is the purpose of a flap overload valve 371. Of what material ar low pressure rigid fuel lines made 372. How is a rigid fuel tank inspected for leaks 373. What factor alters the boiling point of a liquid 374. How does a radar altimeter determine altitude 375. What is the term for .001 amperes 376. When will a landing gear warning most likely occur 377. What is the flare cone angle on aviation fittings 378. How is an installed wire that contacts moving parts protected 379. In what increments are metal tubing fluid lines sized 380. When is it possible to countersink while flush riveting 381. Describe a class 1 fit for nuts and bolts 382. What does an ammeter in a charging system indicate 383. What fraction size drill is used to make a hole 0.17187 384. When does a diluter-demand oxygen valve open 385. Name 2 tools for cutting large holes in thin metal sheet 386. What is used to bond noncontinuous stainless steel components 387. Express 7/8the as a percent 388. Name 3 ways supplemental oxygen is carried on an aircraft 389. What is tare weight when weighing an aircraft 390. How is fiberglass damage extending through all laminates repaired 391. Why is a windshield surface flushed with water before cleaning 392. What does no pressure in an idle hydraulic system indicate 393. What is used to apply flammable agents when cleaning aircraft 394. What component transforms fluid pressure into linear motion 395. What is the smallest particle of a chemical element 396. What does the diaphragm do in a vane fuel pump 397. Fayed surfaces are of concern when chemically cleaning because 398. Where is a pump drive coupling shear section usually located 399. Name 3 types of torque wrenches used in aviation 400. How are electric circuits protected from overheating 401. Why do you not rotate an engine that is pickled for storage 402. How is cabin pressure regulated in an aircraft 403. What does “30” designate in 4130 chromolly steel 404. How many threads may be exposed in an installed turnbuckle 405. What is the formula for the area of a triangle 406. How is a thermocouple fire detector activated 407. What is the primary cause of intergranular corrosion 408. When does cooling occur in a air-cycle cooling system 409. What publication provides standards for hardware installation 410. How are bubbles removed from fuel in fuel tanks 411. A fillet weld should penetrate to what percent of the metal thickness 412. What does the term “bleeding the brakes” mean 413. In the aluminum alloy 5052-H36, what does the “H-36” mean 414. How is a generator fields residual magnetism restored 415. What are the two methods of case hardening steel 416. What type electric wire terminals are used in most cases 417. The forced exerted on a piston by hydraulic fluid is found by 418. Name 2 types of air conditioning systems used on aircraft 419. What type of AD may be adopted without an NPRM 420. How do deicer boots remove ice accumulations 421. What is meant by a temperature of absolute zero 422. What controls inflation in a pneumatic deicer boot system 423. What medium provides the slowest quench when heat treating steel 424. How many sets of field windings do reversible motors have 425. What is the usual cause of a hung start on a turbine engine 426. What is the purpose of a relief valve in a brake system 427. What rigid line material is used for high pressure oxygen 428. What are the 3 most common circuit protection devices 429. How are records of major airframe repairs reported 430. How is a control surfaces balance checked 431. What is used to remove corrosion from stressed steel 432. What is the purpose of restrictors in hydraulic systems 433. What type fire extinguisher is used on a carburetor fire 434. What is checked when a shock strut bottoms on landing 435. Acid from lead acid batteries is neutralized with what 436. How many wires may be connected to a terminal strip stud 437. How does the supply lines size effect a hydraulic systems force 438. How is a static pressure system leak located 439. What are the three states of matter 440. What gas Is used to purge an aircraft fuel tank 441. What are AN bolts made from 442. Where do control cables break most often 443. What are the 3 axes of an airplane 444. How is fuel temperature controlled in turbine aircraft 445. Who is responsible for upkeeping maintenance records 446. What type of thermocouple is used for high temperature gauges 447. How is the twist of a connection rod measured 448. What is the purpose of a brake system debooster valve 449. What is done after mechanically removing corrosion from aluminum 450. What is the smallest aluminum wire approved for aircraft 451. How often are transponder checks required 452. What part of vapor cycle cooling system is its reservoir 453. Magnetic particle inspection is used to detect what 454. How is a steel longeron, dented at a cluster, repaired 455. What is the speed of sound at sea level 456. Where is fuel pressure typically taken for a warning signal 457. What must be done to a part after magnetic particle inspection 458. How are generators rated 459. What are 2 ways to counteract torque from a helicopter rotor 460. What 2 types of fuel cells are used in modern aircraft 461. What is FAA formm337 used for 462. At what setting does an altimeter indicate pressure altitude 463. What shape are the teeth of a vixen file 464. What are the major parts of a DC motor 465. With what should Plexiglas be washed 466. Why is jet fuel more susceptible to water contamination than avgas 467. What tool checks the stem of a poppet valve for stretch 468. What are two functions of a steer dampener 469. Why wont a charged lead acid battery freeze in normal cold temperatures 470. When can laminated spars be substituted for solid wood spars 471. Why is there space beneath the plates in a lead acid battery container 472. How is the grain of laminated wood parts assembled 473. In a circuit diagram, what is the voltage of the ground reference 474. A faint line across the grain of a wood spar indicates what 475. A thermal switch in an electric motor is designed to do what 476. How may you repair a wood spar with elongated bolt holes 477. Why are bonded clamp used with rigided tubing 478. Why is flux used when silver soldering 479. What current and voltage is used to rapidly charge a Ni-Cad battery 480. Why are circular patches used to repair plywood skin 481. What is the typical application of a Zener diode 482. When are mineral streaks acceptable on an aircraft structure 483. What color is MIL 5606 hydraulic fluid 484. What is the maximum number of splices allowed in a wood spar 485. If electrolyte from a lead acid battery spills, you should 486. When are pin knot clusters permitted in wood structures 487. What is a hermaphrodite caliper used for 488. What is a current limiter designed to be used with 489. How is improperly applied alodine corrected 490. What controls inductor type inverter output voltage 491. What are the three parts of a twist drill 492. Which side is the pin section of a connector installed on 493. What is a piezoelectric material 494. Where does residual voltage in a generator come from 495. What 2 materials are used to make aviation hacksaw blades 496. What is the minimum bend radius of an electric wire bundle 497. What are the main alloy ingredients of 6000 series aluminum 498. Why must aircraft be weighed indoors 499. Who makes the entry in an aircraft log after a 100 hour inspection 500. What is done with a tire whose fusible plug allows it to deflate 501. Are torque values typically for dry or lubricated threads 502. How is a voltmeter connected to read voltage drop 503. What line on a blueprint represents an edge not visible to the viewer 504. When is masking tape removed following trim painting 505. An electrical fire is best treated with what extinguisher type 506. What is the main purpose of fuel tank vents 507. What term is used to express electrical power 508. What is used to remove frost from aircraft before flight 509. What determines if a “moment” is a positive or negative value 510. When is S-glass most often used 511. How are MS flareless fittings tightened 512. What type loads cause most rivet failures 513. When is it required to update weight and balance records of an aircraft 514. Plastic that flows when heated and then re-heated is called what 515. How is the state of charge of a Ni-Cad battery determined 516. What type of fabric is unaffected by moisture and mildew 517. NiCad battery cases affected by electrolyte are cleaned with 518. What often contaminates phosphate base hydraulic fluids 519. What do tolerances represent in drawings 520. What is the general rule for selecting rivet diameter 521. What is the fare angle for aluminum tube with AN fittings 522. Why are 5056 aluminum rivets used when riveting magnesium 523. The measurement showing the ideal size of parts on drawings are 524. Whats the advantage of Hi-Lok fasteners over older similar types 525. What symbol is often used in drawings to represent all metals 526. What type of load is predominant in a rivet joint 527. Which AN818-? Coupling nut is selected for 1/2 “ aluminum oil lines 528. What is the minimum edge distance for aircraft rivets 529. Where are technical descriptions of propellers found 530. Why are doublers used when mounting antennas 531. Flexible hose is classified in size by what dimension 532. In what direction is metal bent to achieve greatest strength 533. How do you determine epty weight if the W&B records are lost 534. Is the woof, warp, weft, or fill the strongest thread in fiberglass cloth 535. When ground running an engine, why is the aircraft positioned into the wind 536. Excess wear in the shoulder of a tire indicates what 537. What is the FAAs reference wood for aircraft construction 538. Pole pieces in DC generators are part of what assembly 539. What is the normal Btu rating per pound of aviation gas 540. Name 3 hydraulic fluid type used in aircraft 541. Why is paint &anodizing removed from a tube at clamp locations 542. What is the purpose of a joggle 543. Why is kerosene a better turbine fuel than gasoline 544. Whats the advantage of hydraulics over electric motors 545. The useful load of an aircraft is defined by what 546. What is the soak method of cementing transparent plastics 547. Softening a metal by heating and slow cooling is called 548. How can microbial growth in jet fuel affect the aircraft 549. What are the differences between grade 100 and 100LL fuel 550. What are the two advantages of skydrol fluid 551. When computing weight & balance, an airplane is balanced when 552. How can you inspect a laminated fiber glass structure for damage 553. Stress on metal tubing due to temperature change is avoided by 554. Why are rivets refrigerated after heat treatment 555. What is the minimum hose length used between fittings 50” apart 556. How does an installed MS20470D rivet achieve full strength 557. Why is ethylene dibromide added to aviation fuel 558. What are the advantages of hydraulics as power source 559. What document provides the leveling method when weighing an aircraft 560. What effect does zinc chloride have on acrylic plastic 561. How can localized damage to a hydraulic tube be repaired 562. How are 2024-T4 structural members straightened 563. What is the approximate angle of the point of a center punch 564. How is a high voltage capacitor made safe for handling 565. Liquid penetrant inspection is used to detect what 566. Why is welding over a brazed joint not permitted 567. Who determines that materials used in a repair are the proper type 568. Why are aircraft instruments color coded 569. What tool should anodized surface be cleaned with 570. What causes a loud hammering noise in a hydraulic system 571. Shy is a nut & sleeve preferable to a single piece flare fitting 572. What type parts bound with mild steel rivets 573. A part being prepared for dye inspection is cleaned with what 574. What controls vertical flight in a helicopter 575. Why is some slack left in a flexible hose during installation 576. What is the minimum rivet spacing dependant on 577. How does increased temperature affect resistance in a Ni-Cad battery 578. When does rejuvenator not restore strength to fabric 579. Name 3 primer types that protect metal and enhance topcoat bond 580. What type fault can be found in a generator with a growler 581. The maximum weight of an aircraft is defined as 582. The strength of a composite lay-up depends mostly on what 583. What is the square root of 4 raised to the 5th power 584. What controls piston speed in pneumatic actuator 585. What is the advantage of a double flare on aluminum tubing 586. Why are clad aluminum alloys used in aircrafts 587. How many copies of form 337 are required after a major repair 588. How are synchro transmitters connected to synchro receivers 589. Why is exceeding fore or aft CG in a helicopter hazardous 590. Why is a gusset used when repairing aircraft structures 591. Why is tetraethyl lead added to aviation gasoline 592. Name 3 desirable properties of hydraulic fluid 593. Define the term “maximum weight” of an aircraft 594. What is a network of tiny cracks in a windscreen called 595. What are the signs of detonation occuring 596. What is extrusion of O rings prevented in high pressure systems 597. What medium is most often used in magnetic particle inspection 598. What is the most important consideration for selecting welding rod 599. What is “clad aluminum alloy” 600. What causes intermittent buffeting on an airplane 601. Name 3 penetrant types used in liquid pentrant inspection 602. What is a squib, as used in fire protection systems 603. How large of a dent is permissible in a rigid fluid line 604. On what criteria is the selection of wire size chosen 605. What should be tested immediately when taxiing an aircraft 606. Why are relief valves used in pneumatic systems 607. Name two metals that are the most anodic 608. What does chattering of a hydraulic pump indicate 609. What are the desired effects of using alodine on aluminum alloy 610. What type seals are used with vegetable base hydraulic fluids 611. Should a drill used for steel turn faster or slower than for brass 612. What is aircraft fuse capacity rated in 613. What is meant by “magnetic retentiviy” 614. Why is a pointed tip on a soldering iron undesirable 615. What is the significance of the mathematical value “pi” 616. How is a castle nut safetied on a stud which is screwed into a casting 617. What term describes the combined resistive forces on an AC circuit 618. What size aluminum wire can replace a 4 gage copper wire 619. What is the square root of 64 620. When used near a compass, cotter pins must be made of what 621. How is max flap extension speed marked on a airspeed indicator 622. How is fuel moved overboard in jettison systems 623. How is the size of a rigid fuel line determined 624. How is a fuel tank cleaned before welding 625. Potential difference between conductors insulated from each other is measured in 626. Where are the skid detectors located in an antiskid system 627. What material is typically used for aircraft engine firewalls 628. Where is the buttline of an aircraft 629. Why is steel tempered after being hardened 630. What measurement is known as the “chord” of a wing 631. For how long must the record of a 100 hour inspection be kept 632. How are direction chances in a control cable accomplished 633. An increase in which factors will cause an increase in inductive reactance 634. Where is the landing gear safety switch located 635. What is the purpose of ATA Specification 100 636. What is the prime purpose of a fuel jettison system 637. What electrical charge is carried by an electron 638. What is the purpose of antiskid generators 639. What factor affects the speed of sound in the atmosphere 640. What type vibration do instrument shock mounts absorb 641. When taxiing in a quartering tailwind, the ailerons are held in what direction 642. What does a landing gear warning system indicate 643. Name 2 reasons why weight & balance control is important 644. How do light refraction smoke detectors detect smoke 645. Name 3 methods of heat transfer between objects 646. What do NAV, HDG, or GS flags indicate on a HSI 647. What heat treat process produces a hard surface and a tough core 648. What is “angle of incidence” 649. How are fuels greater than 100 octane classified 650. What is the most common aircraft selector valve type 651. Rivet “smoking” indicates what type of corrosion 652. How are antiskid braking systems armed 653. What are the three methods of carburizing steel 654. What is the main advantage of series wound DC motors 655. What is the shank length of an AN5-22 bolt 656. What does a rectifier do 657. What is the white powder that forms on a NiCad battery 658. Name 3 purposes of boost pumps inside fuel tanks 659. What 2 things are needed for the transmission of sound 660. Why are capacitance fuel indicators more accurate than mechanical types 661. What is the electrolyte of a lead acid battery made of 662. How is a fuel leak located on a piston powered aircraft 663. What corrosion is not always visible on the metals surface 664. What size dents are okay in straight runs of hydraulic tube 665. Where are an aircrafts weight & balance records kept 666. What would be the effect if dope was used over paint 667. Which is heavier, avgas or kerosene 668. When is it ok to pull a too short rigid tube into place 669. What does the letter “O” following an alloy designation mean 670. Why is rigid fuel line installed with bends between fittings 671. When towing an aircraft, a flashing red light from the tower means what 672. What is the function of an orifice check valve 673. What is meant by “class 3 thread fit” 674. How will overtightened control cables affect how an airplane flies 675. In the aluminum alloy 6061-O, what does the “O” mean 676. As the lift of an airfoil increases, what happens to drag 677. Fuel that vaporizes at too low a temperature can cause what 678. What hydraulic fluid type is used with neoprene packing material 679. What is “moment “ in a weight & balance computation 680. What is the proper thinner for zinc chromate primer 681. In what direction should a nose wheel be placed when parking an aircraft 682. What does an absolute pressure regulator do 683. How is an aluminum alloy part heat treated 684. What control effects roll In a helicopter 685. What power of 10 equals to 1,000,000 686. Whats the main cause of contamination in oxygen systems 687. What holds a rollpin in its hole 688. What instrument measures very high values of resistance 689. What are the four temperature scales 690. How does temperature affect fuel weight 691. Is replacing fabric on wings a major or minor repair 692. In what sequence is a swept back wing airplane defueled 693. What is the purpose of “normalizing” metal 694. What controls an airplane on its lateral axis 695. What must be monitored when using a NiCad battery 696. Where is aircraft defueling accomplished 697. If a torque castle nut does not align with the hole, you should 698. How many strands of wire make up 7x19 control cable 699. Why do gold and platinum not corrode 700. How does jet fuel react in reciprocating engines 701. What is the value of 10 raised to the negative 6th power 702. if cabin rate of climb is high, how is the outflow valve adjusted 703. what is sound intensity measured in 704. name 4 types of furl quantity gauges 705. how much work is required to lower a 60 Ib block 3 feet to the floor 706. what does a lubber line on a directional gyro indicate 707. how do you compute the area of a triangle 708. what determines how much pressurization an aircraft can use 709. where are placards required on an aircraft specified in 710. how frequently is coaxial cable secured to the airframe 711. where does fretting corrosion typically occur 712. what is Pascal’s law regarding hydraulic pressure 713. what corrosion type attacks improperly heat treated aluminum 714. what document states control surface deflection 715. what color is 100LL fuel 716. why are moisture separators used in pneumatic systems 717. name 3 parts of a medium pressure reusable fitting 718. what does a circuit breaker in a lighting system protect 719. why is it good to normalize a part after welding 720. why are stress plates used when jacking an aircraft 721. how is a part de-magnetized following magnetic particle inspection 722. at what line pressure does acetylene become unstable 723. what tool best measures the alignment of a rotor shaft 724. what is the purpose of valve inside oleo struts 725. how is the inside of steel tubing best protected from corrosion 726. what is a fault if a system will not take a freon charge 727. what are the 5 types of stress in mechanical bodies 728. what does fuel stains around a fuel nozzle indicate 729. where can you find a list of items to be checked in a 100 hour inspection 730. what is the smallest size cable used in primary control systems 731. what regulation regards to issuing mechanic certificates 732. what is the purpose of a cross-feed fuel system 733. what is the main alloy ingredient of 7000 series aluminum 734. what type of cable is used for primary control systems 735. a distance measured from a datum to a point on an aircraft is called 736. what is the purpose of retarder when painting aircraft 737. what are two types of fluids 738. what two types of smoke detectors are used on aircraft 739. how should a good gas weld bead appear 740. name four materials harmful to aircraft tires 741. of what two materials are cotter pins made 742. why must ice not build up on a airplane wing 743. what force is the head of a rivet loaded in 744. what removes flux from an aluminum tank after welding 745. why will Ni-Cad batteries in long storage show a low liquid level 746. what is the purpose of finishing tape 747. servicing NI-Cad and lead acid batteries in the same area can result in 748. how many fabric layers are in a French-fell seam 749. small deposits of potassium carbonate on top of a Ni-Cad battery indicates 750. what determines the correct fabric weight for covering an aircraft 751. on what type of load may an AN clevis bolt be used 752. what is the purpose of spring tabs or servo tabs 753. when should flexible control cables be replaced 754. why can thermocouple leads not be altered 755. what is meant by the aluminum code number “1100” 756. what is a universal propeller protractor most often used for 757. what is a ferrous metal 758. what type fuel boost pump requires a pressure relief valve 759. what is the purpose of wing dihedral 760. on what frequency is a marker beacon signal transmitted 761. what tool measures main bearing journals for out of round wear 762. why is a mark drawn from a wheel rim to the tire sidewall 763. what is the definition of “square root” 764. what does the evaporator do in a Freon cooling system 765. what are rivets that are installed from one side called 766. what is the color of each position light on civil aircraft 767. what regulation governs issuance of airworthiness certificates 768. what type antenna is used for an ATC transponder 769. who may perform instrument repairs 770. why are magnetic compass bowls filled with liquid 771. how can exhaust stains be removed 772. how does a CSD unit drive a generator 773. how are minor repairs to an aircraft recorded 774. what does a turn coordinator indicate 775. what is meant by the specific gravity of a fluid 776. in a autopilot, what does a follow-up signal do 777. in the aluminum alloy 3003-F, what does the “F” mean 778. what is the purpose of wing slats 779. what are MS flareless fittings primarily used for 780. whats the advantage of a circuit breaker over a fuse 781. corrosion is removed from magnesium parts with what 782. what is ventilating air used for on a combustion heater 783. what will a gasses pressure be if its container size is doubled 784. why are electrical instrument cases made of iron or steel 785. how do you determine compression ratio of a cylinder 786. what data is stamped on an aircraft oxygen bottle 787. an inclusion creates what pattern in a magnetic particle inspection 788. what is the function of a helicopter tail rotor 789. values in a torque chart apply to what condition of the threads 790. how is an aircrafts dihedral angle measured 791. when taxiing an aircraft, a flashing white light from the tower means what 792. why do MIL-H8794 hoses have a yellow stripe down its length 793. what 2 types of radiation are used in radiographic inspection 794. what is the frequency of an alternator dependant on 795. what types rope is best for tying down airplanes 796. how is a CO2 fire extinguisher checked to determine its charge 797. how can dividers be used as a measuring device 798. what is the likely cause of a spongy brake 799. if holes and globules are found in a weld, what should you do 800. how much time may a 100 hour inspection be extended 801. what determines the mechanical advantage of a set of rope and pulleys 802. how is a pitot tube heater checked after replacement

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3. Shows functional location of components In a system 4. Hundredths of an inch 5. Items not on equipment lest removed, drained fuel, full hydraulic fluid 6. Separation of the laminates 7. All unusable fuel 8. Low speed, high pressure 9. By the shoulder between the thread ends and the flare cone 10. Distance between center of rivets in adjacent rows 11. Aircrafts specification and type certificate data sheet 12. Forms the cutting edges of the tip 13. Every 2 weeks or upon emergency 14. 60 degrees 15. The aircrafts weighing points 16. By applying heat and pressure 17. An electrical wiring diagram 18. High strength to weight ratio 19. Type certificate data sheets 20. Ultra violet light, stress, solvents 21. Crew, passengers, cargo, and fuel 22. Amount of time resin remains in a workable state 23. Locate parts, sections, and views on large drawings 24. Length, body diameter, head type 25. Gauge blocks 26. Hose may expand as pressure is built up 27. Case hardening 28. Rudder 29. Exploded view drawings 30. Possibility of causing delamination 31. It is typically more restrictive 32. Burnishing 33. Repairs and alterations 34. Tighten firmly then back off a full turn 35. In solvent, then a decarbonizer, then scraped or grit blasted 36. The seals will fail 37. Mechanic holding the appropriate rating 38. Prevent build up of static electricity 39. Water 40. Interior coated with film of engine oil 41. Ability of stressed metal to return to its original shape 42. Prevent fuel surging when aircraft maneuvers 43. 25’ in front; 100 ft behind 44. Straightens the nose wheel 45. 1/16 inch 46. Nicked strands will most likely break 47. A feeler gauge 48. High pressure valve in an air/oil shock or accumulator 49. Lever arm 50. Electrical insulation 51. .606” (outside diameter minus twice the wall thickness) 52. A dimple in its manufactured head 53. One not deeper than 10% of the wall thickness 54. Monel rivets 55. 8 cubic feet 56. A shroud around the muffler 57. Corrosion resistant steel; either annealed or ¼ hard 58. Sharpest bend that will not critically weaken the part 59. Bowline 60. Bend allowance and setback 61. The impression left in a flexible hose by its clamps and support 62. Its skin 63. Oil leaks past piston rings into a lower cylinder 64. Aircraft service manual 65. Corrosion 66. Reservoir, pump, selector valve, accumulator 67. Potassium hydroxide and water 68. Check fuel from bottom of tank 69. Jet-A/A1 and jet-B 70. Special high grade refrigeration oil 71. March 31st of each year 72. Prime with corrosion inhibitor and seal from the atmosphere 73. End of a charging cycle by decomposition of the electrolyte 74. 70%of its original strength 75. Butyl hoses and Teflon hoses 76. Inside radius of the bend 77. Troubleshooting system malfunctions 78. X-ray, blacklighting 79. 80 degrees F 80. Supports itself with no external structure 81. The direction of fluid flow 82. Attach parts with screws to sheet metal 83. An installation drawing 84. Aluminum corrodes in contact with carbon/graphite 85. A cross inside a triangle 86. No more than 3 degrees 87. Fluid pressure decreases as fluid velocity increases 88. Entire part is re-heat treated 89. Certified mechanic with an A&P rating 90. Run a piece of cloth back and forth over its length 91. Excessive spewing during the charging cycle 92. By tensile strength 93. In parallel with the unit 94. The glue 95. Upwards or with the head forward 96. 126 inches aft of the datum line 97. Exfoliation 98. Air pressure Is relieved 99. 5-8% of its length 100. Fretting corrosion between rivet and skin 101. Volume displaced by all pistons in one revolution of crankshaft 102. Soap and water 103. Uncontrolled explosion of fuel/air in the cylinder 104. Relieve system pressure 105. Brittle 106. 7psi 107. 1.275 108. Biocidal agent;antifreeze agent 109. 1/16th 110. Produces deadly phosgene gas 111. Parasitic, induced 112. Prevent fuel from flowing away from boost pump 113. The technician completing the task 114. 10 time diameter 115. Contact of two unlike metals 116. Absence of air bubbles in sight glass 117. Rotate engine 2 revolutions before starting 118. Deflects water away from the fuselage 119. One ten-thousandth of an inch (.0001”) 120. So the tube may position itself correctly 121. A certified A&P with an IA rating 122. Rebalanced to the manufacturer’s specifications 123. 1/32 inch 124. Changes AC current to DC current 125. Volume displaced by all pistons in one revolution of crankshaft 126. Soap and water 127. As close into the wind as possible 128. Indefinite number of times 129. 512 130. Controls supply of hot and cold air 131. Anywhere the manufacturer chooses 132. MEK- Methyl-ethyl-ketone 133. Graph paper 134. Viscosity 135. Continue cranking and start engine if possible 136. 2 hours, or 3 hours in hot weather 137. Mean aerodynamic chord 138. Deteriorates rubber parts 139. AC43.13 section 1B 140. Threads extend beyond the inspection hole 141. 81% 142. Green 143. Induction 144. AC 43.13-1B 145. Conduct 146. To reduce weight 147. 3.1416… 148. Full rated strength of the cable 149. A feeler gauge 150. Firm brake pedals 151. Cracking adjacent to the weld 152. With an FAA issued special flight permit 153. 14.7 IBS per square inch; or 29.92 inches of mercurt 154. Zero 155. Proceed with extreme caution 156. 30 foot ponds 157. Detail drawings, assembly drawings, installation drawings 158. Blushing 159. Artificial aging 160. Electric element built into pilot tube 161. The sum of all the capacitors 162. When angle of attack approaches the stall 163. Lead from the gasoline will dposit on the turbine blades 164. The direction of fluid pressure 165. Block in the views 166. Too much material applied in on coat 167. Calorie 168. It will smear and restrict visibility 169. The length of the unthreaded shamkl 170. Ailerons 171. Blue and yellow 172. A transformer 173. Place a nonporous dielectric material between surfaces 174. Relieves cabin pressure when airplane is on the ground 175. The part was not washed before the developer was applied 176. Argon or helium 177. Weight permanently installed to bring aircraft into CG limits 178. Reduces chance of fuel contamination and static buildup 179. 746 Watts 180. Continuous flow or pressure demand types 181. A signed and dated written list 182. Local magnet field in the aircraft 183. Force, distance, time 184. Servo 185. Engine fails to reach sufficient rpm to maintain operation 186. Limits the extension stroke 187. Heat or burn marks on the hardware 188. Doped on after 2nd coat of dope is applied 189. Teflon 190. Reduce effects of eddy currents 191. Iron based metals 192. Increases lift and drag on that side 193. Kevlar 194. Halon 1301 195. Red 196. Crimpling only (not Soldering) 197. #21 drill 198. Stainless steel 199. The distance from an object to the aircraft datum 200. One or more coats of suitable resin is applied 201. It will remain the same 202. Minimum and maximum operating limits 203. 14 CFR Part 23 204. Aligns airplane with center of the runway 205. Maximum permitted weight of a loaded aircraft without fuel 206. Water 207. Condition to be met for an aircraft return to service 208. Pressure and temperature 209. Kinetic 210. Slight increase before engine dies 211. Asymmetric lateral control at near stall speeds 212. Provides ground, minimizes static interference 213. Its annealed state 214. Stall the inboard portion of the wing before the outboard 215. A cross 216. Cable is misaligned 217. Tempering 218. To give an airplane a nose heavy tendency 219. Increased time and temperature of the part 220. Reduces internal stress, assures complete penetration 221. Crank engine with mixture in cutoff; throttle open and ignition off 222. Short slow ground rolls, minimum braking proper inflation 223. Type, length, cut 224. Transformer gets hot in normal operation 225. Micrometer caliper 226. Pedal slowly creeps down when brakes applied 227. Metallic ring test 228. Removing material weakens the joint 229. Eddy current inspection 230. It over hardens the surface of the weld 231. It is carrying a hazardous substance 232. To keep oxygen away from the molten puddle 233. Raid and severe corrosion 234. Chemical oxygen generators 235. Inches of mercury or milibars 236. Capacitance system 237. Corrosion protection 238. Varies current flow in generator field coil 239. Low drag at high angle of attack, good at low speeds 240. Along centerline on top of the fuselage 241. The side opposite the right angle 242. Stripe of brown tape and diamonds 243. Fuel-air mixture is too rich 244. Overinflation 245. High stress areas where the cross sectional area changes sharply 246. By tilting the main rotor 247. Stock, protractor, centering 248. .003ohms 249. Pulls the penetrant from a crack thus exposing the fault 250. Relative position of blades during rotation 251. The full rich position 252. Debris in the master cylinder compensating port 253. Ratio of a wings span to its mean chord 254. Vertically polarized whip antenna 255. Sliding feeler gauges between it and a surface plate 256. External line leak; or internal master cylinder leak 257. Millipore test 258. Certified instrument repair station 259. Foot-pounds; inch-pounds; meter-kiligrams 260. Backwards 261. Heat treated aluminum alloy 262. Down 263. A logic flowchart 264. Collect water and debris for draining 265. National aerospace standard 266. Applied by a spring, released by a magnet 267. Fuel remaining in tanks, lines, components after tanks are drained 268. Delays separation of the boundary layer 269. Remove grease with dry cloth, wash with soapy water 270. Ram air source, compressor engine bleeds 271. The anodic 272. Continuous flow systems 273. Actual amount of water in a volume of air 274. Percentage of takeoff rpm 275. Combination set 276. Retard flow of oil as struts are compressed 277. Defects that are parallel to the long axis of a part 278. Disengages rotor in case of engine failure 279. Triangle in which no two sides are eqal 280. Dry powder type 281. Immediately shut down the engine 282. Main hydraulic system 283. Repeatedly applying a force such as hammering or bending 284. Fowler flaps 285. Softens metals; decreases internal stress 286. To the left 287. Copper is the main alloying ingredient 288. its upward travel 289. protects the alloy core from corrosion 290. bubble level and a fixture as described by manufacturer 291. it will shrink if it gets wet 292. at least once per week 293. 73.5 hp 294. Moisture collects in the bottle 295. 1/40th 296. Contains too much moisture 297. High temperature & humidity makes higher true landing speeds 298. Attitude indicator, heading indicator, turn & slip indicator 299. Air pressure above the wing is less than pressure below it 300. When operated outside the U.S. 301. Chemical surface treatment Such as alodine 302. Naptha or varsol, or Stoddard solvent 303. Causes hydrogen embrittlement in metal structures 304. Blue 305. To allow for shifting when the line is pressurized 306. Heat treatment 307. Solid, laminated, plywood 308. Output voltage; frequency; phase rotation 309. Soft unbounded clamps prevent wear on a wires insulator 310. Larger diameter tubing with fishmouth and rosetta welds 311. Reference line to left or right of aircraft center line 312. Heated air from muff around exhaust system 313. Anodizing 314. Prevents pump cavitation 315. Returning to their natural state as an oxide or sulfate 316. With high pressures and high rates of flow 317. Creating compressive stresses such as by shot peening 318. Every five years 319. Light weight with large area face 320. Integrated circuit chip with clock circuit 321. Perpendicular to the magnetic flux lines 322. Remove stresses caused by forming 323. Temperature at which water vapor condenses to a liquid 324. Yaw dampner system 325. An anode; a cathode; an electrolyte, electrical contact 326. Fluid flowing from pump drain line 327. A sectional drawing 328. Etch surface of metal to improve bonding of topcoats 329. Aliphatic naptha 330. trichloroethylene 331. plate area sand distance between plates 332. one that uses oil to lubricate its vanes 333. aircrafts logbook 334. Teflon tape 335. Gold, chromium, stainless steel 336. Discarded and replaced 337. Hard starting of the engine 338. Butyl rubber seals 339. Continuous, residual 340. Change AC current to DC current 341. Dye penetrant, eddy current, ultrasonic, visual 342. On the surface to be welded and the welding rod 343. Greatest pressure differential on each side 344. Altimeter, vertical speed indicator, airspeed indicator 345. To much heat was put into the metal 346. Brakes would drag 347. Multiply area of piston head by length of th stroke 348. Aspirator in fluid return line or bleed air from engine 349. Triangle, circle, cube, cylinder, cone, sphere 350. Acetone 351. Suggested corrections to aircraft problems 352. Independent systems on each side of aircraft 353. Allows current to flow in 1 direction, but blocks it in the other 354. Mild soap and water 355. It becomes lighter 356. Desirable temperature range 357. Aircraft listing 358. To prevent entry of moisture 359. Reduced drag by reducing the spanwise flow of air 360. In tail, or as far aft as possible 361. With a go-no go gauge 362. By an integral fan 363. Detecting subsurface defects in metals, plastics , & thus heat applied 364. Amount of gas burned, and thus heat applied 365. On bolts that are subject to rotation 366. A go/no-go gauge 367. A hidden line 368. To block damaging ultraviolet rays 369. Aliphatic naptha 370. Prevents flap deployment at excess airspeeds 371. 1100-1/2 hard or 3003-1/2 hard aluminum alloy 372. Lightly pressurize tank, brush with soapy water 373. Pressure 374. Transmits a signal, receives back its reflected signal 375. Millamperes 376. Gear up and throttle reduced for landing 377. 37 degrees 378. It is passed through a conduit 379. 1/16 inch increments 380. If thickness of material if greater than that of the rivet head 381. Nut can be tightened with fingers 382. Rate of current charging the battery 383. 11/64” 384. Whenever the wearer breathes 385. Hole saw, fly cutter 386. Copper jumpers 387. 87.5 percent 388. High pressure gas; liquid; solid as a chemical candle 389. Weight of additional items on the scales such as wheel chocks 390. With a step joint or scarfed joint 391. Remove grit which can cause scratching 392. Leaking accumulator ir valve 393. Cotton cloths or atomizing equipment 394. Actuating cylinder 395. An atom 396. Compensate fuel pressure for altitude changes 397. Entrapping corrosive material 398. Between driving unit and hydraulic pump drive shaft 399. Deflecting beam; toggle; torsion bar 400. Fuses or circuit breakers 401. So as not break the seal allowing moisture to reach the cylinder walls 402. Controlling rate at which air leaves cabin 403. Carbon content in 100ths of a percent 404. 3 threads on each side 405. Area= (base x height) divided by 2 406. An abnormal rate of temperature rise 407. Improper heat treatment 408. As compressed air expands through a turbine wheel 409. AC 43.13-1b 410. Agitator on shaft of boost pump 411. 25 - 50% 412. Withdrawing fluid so trapped air may be purged 413. It is non-heat treatable, but strain hardened to 3/4th its hard state 414. Flash the fields 415. Carburizing, nitriding 416. Ring type terminals 417. Multiply area of the piston by pressure per square inch 418. Air-cycle systems; vapor cycle systems 419. An emergency AD 420. Inflate and deflate to break up ice 421. Temperature when all molecular movement stops 422. Distributor valve 423. Oil 424. Two wound in opposite directions 425. The starter cutting off too soon 426. Compensate for thermal expansion 427. Stainless steel 428. Circuit breakers, fuses, current limiters 429. FAA form 337 430. Suspend from its hinge point and observe trailing edge 431. Mild abrasives such as fine grit aluminum oxide 432. Controls rate of movement of mechanisms 433. A carbon dioxide extinguisher 434. Fluid level 435. Baking soda and water 436. No more than 4 437. It does not 438. Isolate sections of line and check each section 439. Solid, liquid, gas 440. Carbon dioxide 441. Nickel alloy steel 442. Over pulleys and through fairleads 443. Pitch, role, yaw 444. Engine bleed air to a heat exchanger 445. The aircraft owner 446. Chrome alumel thermocouples 447. Fit a feeler gauge between arbor ends and parallel bars 448. Reduces pressure applied by brake power controls 449. Neutralize with 5% chromic acid 450. 6 gage 451. Every 24 calendar months 452. Receiver-dryer 453. Flaws near the surface in ferrous materials 454. Welded peach plate 455. 661.7mph (or kts) / 761.7 mph 456. Fuel pressure line of carburetor 457. It must be demagnetized 458. Current produced at their voltage 459. Tail rotor, two main rotors 460. Integral cells; bladder cells 461. To record major repairs or alternations 462. 29.92” Hg 463. Curved 464. Armature; field assembly; brush; end frame 465. Soap and water 466. Jet fuel has a higher viscosity 467. Micrometer or contour gauge 468. Accomplishes steering; eliminates shimmy 469. Acid lowers freezing point 470. If same quality week is used 471. Prevent sediment from touching the plates causing a short circuit 472. All grain running in the same direction 473. Zero 474. Compression failure 475. Open the circuit to allow cooling if motor overheats 476. Cut out the bad area and splice in a new section 477. Keeps metal tube at same electrical potential as aircraft 478. Cleans the base metal of oxide film 479. Constant voltage and varying current 480. To prevent abrupt changes in cross sectional area 481. A voltage regulator 482. When not accompanied by any decay 483. Red 484. Two 485. Apply sodium bicarbonate and then a water rinse 486. When producing only small effects on gain reduction 487. Scribe a straight line a given distance from the edge 488. Heavy power circuits 489. The part is re-treated 490. DC stator field current 491. Shank, body, point 492. Ground side of the circuit 493. Produces electrical potential when bent or pressed 494. Permanent magnetism in the field shoes 495. Hight speed steel or carbon steel 496. 10 times outside diameter of bundle 497. Magnesium and silicon 498. So air currents do not cause inaccurate readings 499. The person approving the aircraft return to service 500. It must be replaced 501. Dry 502. In parallel with the load 503. Medium weight dashed line 504. As soon as the paint is no longer tacky 505. Class c dry powder type 506. Maintains atmospheric pressure on top of fuel 507. Watts 508. Mixture of isopropyl alcohol and ethylene glycol 509. Weight added or removed; and its location from the datum 510. Critical structure applications 511. Turn the nut a specified amount after surfaces make contact 512. Shear loads 513. Any time listed equipment is either added or removed 514. Thermoplastic 515. By measuring discharge 516. Glass fabric 517. Boric acid or ammonia 518. Atmospheric humidity 519. The extreme allowable dimensions of a part 520. 3 times the thickness of thickest sheet being joined 521. 37 degrees 522. Magnesium is the alloying agent in 5056 rivets 523. Dimensions 524. Can be installed with ordinary hand tools 525. The easily drawn symbol of cast iron 526. Hear loads 527. AN818-8 (dash 8) 528. Two times the diameter of the rivet shank 529. Propeller type certificate data sheet 530. Reinstate strength of the aircraft skin 531. The inside diameter in 1/16” increments 532. Perpendicular to the grain of the sheet 533. Re-weigh the aircraft 534. Warp threads 535. For engine cooling purposes 536. Underinflation 537. Sitka spruce 538. Field assembly 539. 20,000 Btu per pound 540. Mineral base; vegetable base; phosphate ester 541. Paint and oxide film are electrical insulators 542. Allow clearance for an overlying sheet or extrusion 543. Kerosene is heavier, so it contains more BTUs per gallon 544. No fire hazard 545. Difference between maximum gross weight and empty weight 546. Edges softened in solvent, Then pressed together 547. Annealing 548. Block fuel flow & quantity indicators; electrolytic corrosion of tank 549. Lead content and color 550. Fire resistant, wide range of operating temperatures 551. The average moment falls within the CG range 552. Strip all paint and shine a light through structure 553. Providing bends in the tubing on installation 554. To retard age hardening 555. 52.5 inches which is 105-107% of the distance 556. Age hardening 557. To scavange lead oxide from cylinders 558. Minimum maintenance; light weight; simple inspection 559. Type Certificate Data Sheet 560. No effect 561. Cut out the damaged area and use a swaged fitting to join the ends 562. ? (Less subject to corrosion than if uncoated) ? 563. 60 degrees 564. Discharge by shorting across terminals with insulated screwdriver 565. Faults extending to the surface of metals & nonporous plastics 566. Brazing materials can enter the metal, weakening it 567. The person doing the installation 568. To direct attention to operational limitations 569. Aluminum wool or bristle brush that wont scratch the surface 570. Loss of accumulator air pre-load 571. Wont reduce the thickness of flare when tightening 572. Steel parts 573. A voltatile petroleum based solvent such as Naptha 574. Collective pitch 575. When under pressure it contracts in length & expands in diameter 576. Diameter of the rivet shank 577. Causes a decrease in resistance 578. When the fabric is deteriorated 579. Zinc chromate; wash primer; epoxy primer 580. Shorted coils 581. Empty weight plus useful load 582. Orientation of plies to load direction 583. 32 584. A variable orifice 585. It is more resistant to the shearing effect of torque 586. Less subject to corrosion than if uncoated 587. Two: one for aircraft and one for FAA 588. Electrically with wires 589. It will reduced cyclic pitch control 590. To reinforce intersecting members 591. Allows higher cylinder pressures without detonation 592. Low viscosity, chemical stability; high flash point 593. Maximum authorized weight of the aircraft and its contents 594. Crazing 595. High cylinder temperature and pressure; decrease in power 596. Backup rings downstream of pressure 597. Finely ground iron oxide, sometimes suspended in kerosene 598. Material compatibility 599. High strength sheets covered with a layer of pure aluminum 600. Unsteady airflow from turbulence 601. Water souble, post emulsified, solvent removable 602. Device from releasing extinguishing agent 603. less than 20% of the tube diameter 604. Current carrying ability and allowable voltage drop 605. The brakes 606. Protection from excess pressure build-up 607. Magnesium, zinc, cadmium 608. Air is entering the pump 609. Slightly rough surface; increased corrosion resistance 610. Natural rubber 611. Slower 612. Amperes 613. magnetism remains after the magnetizing force is removed 614. It cools too rapidly 615. Ratio of circumference to the diameter of a circle 616. With safety wire 617. Impedence 618. 2 gauge 619. 8 620. Corrosion resistant steel 621. The top of a white arc 622. Boost pumps 623. By its outside diameter 624. Washed with detergent , then steam cleaned 625. Volts 626. In the center of the wheel hub 627. Stainless steel 628. Left or right of; and parallel to the vertical centerline 629. Relieve internal stress and reduce brittleness 630. Leading edge to trailing edge 631. One year, or until the next 100 hour inspection 632. With pulleys 633. Inductance and frequency 634. On a landing gear shock strut 635. Sets standards for presentation of technical data 636. Lower landing weight 637. Negative charge 638. Measure changes in wheel rotation speed 639. Temperature 640. Low frequency, high amplitude shocks 641. Upwind ailerons held in down position 642. Gear not locked when throttle is retarded for landing 643. Safety of flight , most efficient performance 644. Sense light reflected from smoke particles in a chamber 645. Conduction, convention, radiation 646. That function is inoperative 647. Case hardening 648. Wing chord compared to longitudinal axis of aircraft 649. By performance numbers 650. Four points closed center valve 651. Fretting 652. A switch in the cockpit 653. Pack, gas, liquid 654. High starting torque 655. 2 ¼ inches (2 + 2/8 = 2 ¼) 656. Changes AC current to DC 657. Potassium carbonate 658. Pressure for starting; prevents vapor lock; transfer fuel 659. A source and a medium 660. Measure by weight instead of volume 661. Sulfuric acid and water 662. Colored dye of gasoline stains leaking area 663. Intergranular corrosion 664. Depth less than 20% of tube diameter 665. In the aircrafts flight manual 666. The dope would dissolve the paint 667. Kerosene weighs 6.7 Ibs per gallon; aavgas weighs 6.0 Ibs 668. Never 669. The metal has been annealed 670. Absorb strain from vibration and temperature change 671. Move clear of runway or taxiway immediately 672. Allows full flow in one direction; limits flow in the other 673. A medium fit, as on most standard aircraft bolts 674. Control movement will feel heavy 675. The metal has been annealed 676. Drag also increases 677. Vapor lock 678. Mineral base oil 679. The weight of an object times its distance from the datum 680. Toluene 681. Straight ahead 682. Provides a stable air source for a compressor 683. Heated in an oven, then immediately quenched in water 684. Cyclic pitch control 685. 10 to the sixth power 686. Moisture 687. Spring action against sides of hole 688. Megohmmeter 689. Fahrenheit, Celsius, Kelvin, rankine 690. Cold fuel is heavier per gallon 691. Major repair 692. Outboard tanks defueled first 693. Reduces stresses put in metal during its fabrication 694. Elevators 695. Temperature 696. In open air with good ventilation 697. Change washers and try again 698. 133 strands 699. They are already uncombined in their natural state 700. Severe detonation leading to engine failure 701. .000001 702. Adjusted to close faster 703. Decibels 704. Sight glass, mechanical, electrical. Electronic 705. 180foot-pounds 706. The nose of the aircraft 707. ½ the product of its base times its height 708. Structural strength of cabin 709. Type certificate data sheets 710. At 2 foot intervals 711. Where surfaces fit tightly but have some relative motion 712. Pressure is the same in all parts of an enclosed system 713. Intergranular corrosion 714. Type certificate data sheet 715. Blue 716. Keeps moisture in air from freezing and blocking lines 717. Socket, nipple, nut 718. The wiring from too much current 719. Relieves internal stresses from the welding process 720. T better distribute the aircrafts weight over the jackpad 721. Slowly move the part away from an AC magnetic field 722. Above 15 psi 723. Dial indicator 724. Prevents rapid strut extension after initial landing 725. Coat inside with linseed oil, then seal tube 726. Clogged thermal expansion valve 727. Tension, compression, torsion, bending, shear 728. Clogged fuel nozzle 729. 14 CFR Part 43 Appendix D 730. 1/8th inch diameter 731. 14 CFR Part 65 732. Allow any engine to use fuel from any tank 733. Zink 734. 7 X 19 cable 735. Station number 736. Slows drying time and prevents blush 737. Liquid and gaseous 738. Photoelectric; visual 739. Tapers smoothly into bse metal 740. Fuel, oil, ozone, solvents, hydraulic fluid 741. Low carbon steel; corrosion resistant steel 742. Distorts shape of airfoil, weight loads down aircraft 743. Tension 744. 5% solution of nitric or sulfuric acid 745. Electrolyte become absorbed into the plates 746. Provides additional wear resistance at the edges 747. Contamination of both batteries 748. Four 749. Normal operations 750. Aircraft speed and max wing loading 751. Only for shear loads; never with tension 752. Assist pilot in moving control surfaces 753. When wires in strand are broken or appear to blend together 754. Electrical resistance of lead would change 755. It is 99% pure aluminum 756. Measuring control surface travel 757. A metal whose main ingredient is iron 758. Sliding vane fuel pump 759. Increases lateral (or roll) stability 760. 75 megahertz 761. Vernier micrometer 762. To check for tire slippage 763. The number that when multiplied by itself gives that number 764. Lowers temperature of the cabin air 765. Blind rivets 766. Left side- red; right side – green; aft end- white 767. 14 CFR Part 21 768. UHF stub antenna 769. FAA approved instrument repair station 770. Dampen the oscillations of the float 771. Varsol or kerosene 772. A variable hydraulic pump and motor 773. An entry in the aircraft maintenance record 774. Roll and yaw 775. Ratio of the fluids density to that of pure water 776. Nullifies input signals to control surfaces 777. The metal is fabricated with no temper control 778. Reduce stalling speed 779. High pressure hydraulic systems 780. Resettable and reusable 781. Stiff non-metallic brush 782. Carries heat to where it is needed 783. Half its original pressure 784. Prevent interference from outside magnetic fields 785. Volume with piston on bottom of stroke compared to piston at top 786. DOT identification; date of manufacture, dates of testing 787. Parallel lines 788. Compensates for torque 789. Clean and dry threads 790. Dihedral board and bubble level along front spar of wing 791. Return to starting point 792. To insure it is installed without twisting 793. X-rays; gamma rays 794. RPM 795. Nylon or polypropylene 796. By its weight 797. Distance between points are measured with a ruler 798. Air in the hydraulic system 799. Remove the entire old weld bead and re-weld 800. 10 hours 801. Number of ropes that support the weight 802. Ammeter reading