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67 Cards in this Set
- Front
- Back
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What is inductance? |
A voltage that is induced in a coil in an AC circuit. The voltage is opposite in direction of the applied voltage, and opposes any change in current. |
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What is impedance? |
resistance + inductive reactance + capacitive reactance in an AC circuit. |
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What information is in the title block of a blueprint and where is it located? |
Drawing number, the name of the part/assembly, the scale, the date, name of the firm, the name of the draftsman, the checker, and the approving official. |
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How can a change to an aircraft be identified in a blueprint? |
listed in columns, either next to the title block or at one corner of the drawing. |
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How many views are required to determine the shape of an object? |
Three: front, top, and right hand side. |
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How is flexible hose sized? |
By the inside diameter, in sixteenths of an inch. |
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What are the three parts of a Military Standard flareless tube fitting? |
The body, the sleeve, and the nut. |
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What should be the width of the weld bead and depth of the penetration, when making a butt weld? |
width should be 3 to 5 times the thickness of the base metal and there should be 100% penetration. |
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Name the steps for corrosion removal. |
Remove, clean, treat, prime, and paint. |
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How is a ratio expressed? |
As a fraction, or written using the colon. |
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What is the definition of "time in service" with respect to maintenance time records? |
The time, from the moment an aircraft takes off to when it lands. |
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What are the record requirements after compliance with a 100 hour inspection? |
1) The type of inspection and date finished 2) Aircraft time in service 3) The "I certify" statement 4) The signature and certificate number of the person approving the aircraft for return to service. |
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What are the requirements after compliance with an Airworthiness Directive? |
No specific format but, the record entries must show: 1) Number assigned to the AD and date 2) Method 3) Aircraft time in service 4) Signature and number of mechanic 5) Current status of all applicable AD's and method of compliance. |
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Where should the description of a MAJOR repair and alteration be recorded? |
On a Form 337, which then becomes part of the maintenance records. |
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What is the disposition of an FAA Form 337 after it is completed? |
You must give one copy to the aircraft owner, and one to the FAA, and one in a fireproof container attached to the airframe when fuel cell/tank repairs are completed in the cargo bays or the cabin compartments. |
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Who is required to make the entry in the aircraft records after a 100 hour inspection has been performed? |
An appropriately rated, certified mechanic. |
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How long must the record of a 100 hour inspection be retained by the owner/operator. |
Until the work is repeated or superseded by other work or for one year after the 100 hour inspection was performed. |
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Where can a mechanic find an example of a 100 hour inspection maintenance record entry? |
FAR 43.11 (I certify statements) |
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When an aircraft is sold, what is done with the aircraft records containing the current status of airworthiness directives? |
The FAR's require the records to be transferred to the purchaser at the time of sale. |
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What is an AD summary? |
A regulatory notice sent by the FAA to inform an aircraft owner of a condition that will keep his/her aircraft un-airworthy. |
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What are AD frequencies? |
An update of aircraft affected by an AD, released every 2 weeks by the FAA. |
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What is the standard ATMOSPHERIC pressure at sea level? |
14.7 psi |
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What is the standard BAROMETRIC pressure at sea level? |
29.92 Hg |
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What determines the density of the air (density altitude)? |
The temperature and pressure acting upon it. |
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What are the three basic parts of a lever? |
The fulcrum, force of effort, and resistance. |
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In what direction is force transmitted in a fluid? |
Force is transmitted equally in all directions. |
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What is friction? |
Opposition to movement. |
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Are liquids compressible? |
No. |
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What is relative humidity? |
The ratio of actual water content in the air, to the amount that the air can hold at a given temperature and altitude. |
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How is pressure expressed in hydraulics and pneumatics? |
Pounds per square inch (psi). |
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What are the three methods of heat transfer? |
Conduction (material), convection (flow), radiation (emission). |
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What is the measurement of heat and air transfer? |
The British Thermal Unit (BTU 778 ft/lbs), usually in square feet per hour. |
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When must an Airworthiness directive be complied with? |
The AD will include the time or period necessary for the corrective action to be complied with. |
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Where can you find a list of approved engines for use in a specific model aircraft? |
On the Aircraft Specification (AC Specs) or Type-Certificate Data Sheet (TCDS). |
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What is described in FAR part 23? |
Airworthiness Standards for Normal, Utility and Acrobatic category aircraft. |
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What Federal Aviation Regulation defies the requirements for the issue of Type Certificates. |
FAR part 21. |
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Where would you look to find out if a specific aircraft can be certified in more than one category? |
On the Aircraft Specs or Type Certificate Data Sheet. |
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What publication is issued by airframe, engine and component manufactures to notify aircraft owners of design defects. |
Service bullitins. |
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What are FAA Advisory Circulars? |
They are publications containing non-regulatory material of interest to the aviation public. |
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What Federal Regulation prescribes the certificate requirements for a mechanic? |
FAR part 65. |
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What are the privileges of a certified mechanic in regards to instruments? |
A mechanic may not calibrate or make any repairs or alterations to aircraft instruments. Inspect, mark, remove, or replace only. |
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What are the privileges of a Certified Mechanic in regards to propellers? |
A Powerplant mechanic may only make minor repairs and alterations only. |
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What is used as a guide to determine if a repair is a major or minor repair? |
FAR part 43, Appendix A |
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What does the "recency of experience requirements for a mechanic" mean? |
A certified mechanic may not exercise the privileges of their certificate unless within the preceding 24 months they have, for at least 6 months, served as a mechanic under their certificate and rating, supervised or an administrator has found that they are able to work. |
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What is FAR part 43, Appendix D used for. |
As a guide for a 100 hour or annual inspection. |
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What are the privileges of a certified mechanic in regard to performing a 100 HOUR inspection and returning an aircraft to service? |
A certified A&P mechanic may perform a 100-hour inspection and return an aircraft to service by making the proper entries in the maintenance records. |
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What are the privileges of a certified mechanic in regard to performing an ANNUAL inspection and returning the aircraft to service? |
A certified A&P mechanic with an Inspection Authorization license may perform an annual inspection and return to service by making the proper entries in the maintenance records. |
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Who has the final responsibility for maintaining aircraft maintenance records? |
The owner or operator of the aircraft. |
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May an Airframe mechanic perform maintenance on engines? |
YES, under the supervision of a Powerplant mechanic. |
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What may an A&P mechanic not SUPERVISE? |
100 hour inspections or maintenance they are not familiar with. |
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Why must a mechanic clean the aircraft prior to starting an inspection? |
To allow for a proper and thorough inspection. |
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What are the sources of electrical power? |
Mechanical, chemical, photoelectric, and thermal. |
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What represents capacitance in an AC circuit? |
A capacitor (condenser). |
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What is the function of a capacitor? |
To store electricity. |
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What is the unit of measurement of power in a DC circuit? |
The Watt, P= I x E (745.7 watts equals to one horsepower) |
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What are the three types of electrical circuit? |
Series, parallel, and series parallel. |
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A 24 volt lead-acid battery has how many cells? |
It has 12 cells, each rated at 2 volts (2.2 when fully charged). |
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What should be the specific gravity of the electrolyte in a fully charged lead-acid battery? |
Between 1.275 and 1.3. |
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What instrument is used to determined the specific gravity of electrolyte in a lead-acid battery? |
A hydrometer. |
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When using a hydrometer to check the charge of a lead-acid battery, at what temperatures must a correction factor be applied to the reading? |
Adjustments must be made for over 90 degrees and under 70 degrees. |
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What should be the correct electrolyte level in a properly serviced battery? |
Approximately 3/8 in. above the plates. If the battery has baffle plates, the level should be up to the hole in the baffle plate in each cell. |
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Define "tolerance" as used in aircraft drawings. |
The sum of the plus or minus allowance figures. It shows allowable variation. |
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Define "clearance" as used in aircraft drawings. |
The dimensions given for fits between moving parts. |
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Why are dimensions used and how are they shown in an aircraft drawing? |
Solid narrow lines, broken in the middle to insert the measurement. They are used to indicate the size of an object. |
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What is a "bill of material" associated with aircraft blueprints? |
A list of parts and materials necessary for the fabrication or assembly of a component or system. |
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Why are symbols used when drawing aircraft blueprints? |
They are a type of shorthand used to show the characteristics of a component with a minimum amount of drawing. |
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What does a mechanic use for troubleshooting? |
A schematic drawing. |
