Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
44 Cards in this Set
- Front
- Back
|
The bottom surface of the air inlet housing provides the mounting pad for what component?
a. PGB b. PUAD c. GMAD d. FADEC |
b
|
|
|
The purpose of the power turbine assembly is to
a. take power output of the engine and drive the propeller b. make torque necessary to turn the engine compressor rotor c. increase energy level of air that enters the engine by adding velocity d. supply shaft power to the GMAD gear train |
a
|
|
|
the engines GMAD supplies the pads and drives for the ac generator, hydraulic pump, propeller gearbox lube and scavenge pump, propeller overspeed governer and high pressure pump, and the
a.starter b. alternator stator c. fuel pump/metering unit d. propeller pitch control unit |
d
|
|
|
the starter control valve is spring loaded to what position?
a. open b. closed c. override d. engaged |
b
|
|
|
where is the start panel located?
a. center console b. pilots side shelf c. overhead console d. co pilots side shelf |
c
|
|
|
from where does the ignition system receive its electrical power?
a. generator b. aircraft battery c. alternator stator d. essential dc bus |
c
|
|
|
what is the output of the alternator stator?
a. 1-20vac b. 20-40vac c. 40-60vac d. 60-80vac |
b
|
|
|
what component monitors the ignition exciters spark rate?
a. FADEC b. GMAD c. PUAD d. NIU |
d
|
|
|
how many sparks per second can the ignition exciters produce?
a. 1-3 b. 2-5 c. 3-6 d. 4-7 |
d
|
|
|
the oil tank pressurizing valve maintains what oil tank pressure throughout engine operation?
a. 6.5 (+/-0.5) psi b. 7.5 (+/-0.5) psi c. 8.5 (+/-0.5) psi d. 9.5 (+/-0.5) psi |
c
|
|
|
approximately how many gallons per minute does the PUAD luve and scavenge pump provide at engine takeoff power?
a. 3 b. 5 c. 7 d. 9 |
b
|
|
|
the purpose of the oil cooler flap is to vary the air flow through the oil cooler to maintain an engine oil temperature of
a. 40-66C b. 60-86C c. 80-106C d. 100-126C |
b
|
|
|
the advisory, caution and warning system message low oil level adcisory for the engine occurs when the engine oil level drops below
a. 2 gallons b. 3 gallons c. 4 gallons d. 5 gallons |
c
|
|
|
at what pressure differential is the fuel flow relief valve fully open?
a. 650 PSID b. 700 c. 750 d. 800 |
c
|
|
|
what constant pressure drop does the engine drop and spill valve maintain?
a. 60psid b. 70psid c. 80psid d. 90psid |
b
|
|
|
what supplies the FADEC with power until engine rpm is sufficient for the alternator stator to take control?
a. airplane 28 VDC power supply b. NIU c. MIL-STD-1553B data bus d. mission computer system |
a
|
|
|
the fuel temperature switch operates if the fuel temperature from the fuel output of the FCOC decreases to less than
a. 25F b. 32F c. 45F d. 52F |
b
|
|
|
What component is controlled by the FADEC through the ENGINE START switch for normal engine shutdown or by the fire control handle for emergency shutdown?
a. servo valve b. fuel check valve c. electric shutoff valve d. latching shutoff valve |
d
|
|
|
the purpose of the compressor control system is to keep
a. torque and fuel flow at optimum rates for all engine speeds b. torque and fuel flow at optimum rates for low engine speeds. c. compressor stall problems to a minumum at low engine speeds d. compressor stall problems to a minimum at maximum engine speeds |
c
|
|
|
with engines running, what component sends fuel pressure to the compressor variable geometry actuators?
a. fuel pump/metering unit (FPMU) b. limear variable inductive transducer (LVIT) c. Linear variable displacement transducer (LVDT) d. FADEC |
a
|
|
|
how many turbine vane extenders are welded to the inner circumference of the exhaust nozzle?
a. 5 b. 7 c. 9 d. 11 |
b
|
|
|
the diameter of the exhaust nozzle decreases slowly and continuously to
a. increase gas speed and produze thrust b. decrease gas speed and produce thrust c. increase gas temperature and produce thrust d. decrease gas temperature and produce thrust |
a
|
|
|
which component directs the exhaust gases from the engine and continuously puts them in a decreased diameter solid flow?
a. turbine vane extender b. rear turbine support c. tailpipe ejector d. exhaust nozzle |
d
|
|
|
what component translates piston and shaft movement to vary propeller blade angle?
a. hub b. beta tube c. operating pin d. adjustment washer |
c
|
|
|
which component routes engine oil to and from the cylinder and pistons?
a. beta tube b. ground beta enable valve c. PUAD d. GMAD |
a
|
|
|
what propeller assembly part provides an aerodynamic faring over the aft section of the hub?
a. backplate b. rear spinner c. front spinner d. afterbody assemblies |
a
|
|
|
the feather valve is located in what component?
a. PCU b. GBE c. PUAD d. GMAD |
a
|
|
|
the auxilary feather pump is located on the right side of the engine behind which component?
a. PCU b. GBE c. PUAD d. GMAD |
a
|
|
|
during flight operation, what directs the PCU to meter fine and coarse pitch oil to maintain 1020.7 rpm?
a. RVDT b. FADEC C. GBE d. PUAD |
b
|
|
|
during beta/ground range operation, what is normal ground idle prop speed?
a. 739 rpm b. 1010.5 rpm c. 1020.7 rpm d. 1030.9 rpm |
b
|
|
|
most of the damaged parts removed from an engine are
a. discarded b. turned into salvage c. repaired and reused d. used in tech schools |
c
|
|
|
as you inspect engine parts, you must understand the various terms that describe defects. where can you find a list of these terms and their definitions?
a. depot TOs b. organizational maintenance TOs c. intermediate maintenance TOs d. inspection workcards |
c
|
|
|
what type of NDI is limited by the complexity of the part to be tested?
a. x-ray b. ultrasonic c. eddy current d. flourescent dye penetrant |
b
|
|
|
which inspection concept translates flying hour utilization rates into calendar periods, usually expressed in days?
a. phased b. periodic c. isochronal d. hourly post flight |
c
|
|
|
which AFTO form is used to document TCTO compliance if not recorded in the automated TCTO reporting process?
a. 25 b. 95 c. 98 d. 349 |
b
|
|
|
What component in an ignition unit stores high voltage until it can flow to the igniter?
a. diode b. rectifier c. capacitor d. transformer |
c
|
|
|
If there is a drop in APU bleed air pressure or a rise in TIT on another engine when the start switch is depressed, you know
a. air is reaching the starter b. the starter control valve is not opening c. the air portion of the start system is working d. the electrical portion of the system is working |
a
|
|
|
during start, if you get no start light in the button, first check
a. the ignition control circuit breaker b. APU air output c. emergency oil shutoff circuit breaker d. to ensure fire emergency handle is out |
c
|
|
|
what will the TD valve do if there is an open circuit between the coordinator and the TD amp?
a. go to full put b. go to full take c. take 0% d. take 10% |
b
|
|
|
what is the probable cause of compressor rotor shift?
a. rotor out of round b. roller bearing failure c. thrust bearing failure d. incipient compressor stall |
c
|
|
|
turbine rotor blade failure usually occurs near the
a. mid span of the blade b. platform of the blade c. root of the blade d. tip of the blade |
a
|
|
|
turbine blade fatigue failure does not result from
a. dents b. nicks c. bends d. scratches |
c
|
|
|
galling of bearing rolling elements and races is characterized by
a. transfer of metal b. flaking of metal c. magnetization d. discoloration |
a
|
|
|
overtemperature damage to the combustion chamber from a stall condition is caused by
a. an interruption of cooling airflow b. a fluid leak at the engine inlet c. an interruption of fuel flow d. faulty fuel nozzles |
a
|
