AMS General Comprehensive Exam Study – Study Guide, Practice Questions &
Revision Notes
How should a part be demagnetized after a magnetic particle inspection using AC? - ANS
✔✔Slowly moving the part out of the AC magnetic field
How should a part be demagnetized after a magnetic particle inspection using DC? - ANS
✔✔Stepping down the current until part is demagnetization
Tetraethyl Lead - ANS ✔✔Added to aviation gasoline to improve the gasoline's performance in
the engine
The rust or corrosion that occurs with most metals is the result of... - ANS ✔✔A tendency for
them to return to their natural state
What is one way of obtaining increased resistance to stress corrosion cracking? - ANS
✔✔Creating compressive stresses (via shot peening) on the metal surface.
What records must be retained and transferred with the aircraft when it is sold? - ANS
✔✔Records of the current status of AD's, and date and time when recurring AD's are next due
The speed of sound in the atmosphere changes with... - ANS ✔✔Temperature
Instrument repairs may be performed by... - ANS ✔✔An FAA-approved instrument repair
station.
Why won't a fully charged lead-acid battery freeze until extremely low temperatures are
reached? - ANS ✔✔Most of the acid is in the solution (less water concentration to freeze)
, True or False: Repairs to an aircraft skin require a detailed dimensional sketch. - ANS ✔✔False
True or False: On occasion, a mechanic may need to make a simple sketch of a proposed repair
to an aircraft, a new design, or a modification. - ANS ✔✔True
What is one purpose for schematic diagrams? - ANS ✔✔To show the functional location of
components within a system
An aircraft's LEMAC and TEMAC are defined in terms of distance from... - ANS ✔✔The datum
What should you do before installing bonded clamps to support metal tubing? - ANS
✔✔Remove paint or anodizing from tube at clamp location
What method of magnetic particle inspection is used most often to inspect aircraft parts for
invisible cracks and other defects? - ANS ✔✔Continuous
Dial indicator - ANS ✔✔Measures the alignment of a rotor shaft or the plane of rotation of a
disk
Unless otherwise specified, torque values are for nuts and bolts in what condition? - ANS
✔✔Clean, dry threads
What may result if water is added to a nickel-cadmium battery when it is not fully charged? -
ANS ✔✔Excessive spewing is likely to occur during the charging cycle
What is thermal runaway of a nickel-cadmium battery? - ANS ✔✔Low internal resistance and a
high current discharge/charge rate
Revision Notes
How should a part be demagnetized after a magnetic particle inspection using AC? - ANS
✔✔Slowly moving the part out of the AC magnetic field
How should a part be demagnetized after a magnetic particle inspection using DC? - ANS
✔✔Stepping down the current until part is demagnetization
Tetraethyl Lead - ANS ✔✔Added to aviation gasoline to improve the gasoline's performance in
the engine
The rust or corrosion that occurs with most metals is the result of... - ANS ✔✔A tendency for
them to return to their natural state
What is one way of obtaining increased resistance to stress corrosion cracking? - ANS
✔✔Creating compressive stresses (via shot peening) on the metal surface.
What records must be retained and transferred with the aircraft when it is sold? - ANS
✔✔Records of the current status of AD's, and date and time when recurring AD's are next due
The speed of sound in the atmosphere changes with... - ANS ✔✔Temperature
Instrument repairs may be performed by... - ANS ✔✔An FAA-approved instrument repair
station.
Why won't a fully charged lead-acid battery freeze until extremely low temperatures are
reached? - ANS ✔✔Most of the acid is in the solution (less water concentration to freeze)
, True or False: Repairs to an aircraft skin require a detailed dimensional sketch. - ANS ✔✔False
True or False: On occasion, a mechanic may need to make a simple sketch of a proposed repair
to an aircraft, a new design, or a modification. - ANS ✔✔True
What is one purpose for schematic diagrams? - ANS ✔✔To show the functional location of
components within a system
An aircraft's LEMAC and TEMAC are defined in terms of distance from... - ANS ✔✔The datum
What should you do before installing bonded clamps to support metal tubing? - ANS
✔✔Remove paint or anodizing from tube at clamp location
What method of magnetic particle inspection is used most often to inspect aircraft parts for
invisible cracks and other defects? - ANS ✔✔Continuous
Dial indicator - ANS ✔✔Measures the alignment of a rotor shaft or the plane of rotation of a
disk
Unless otherwise specified, torque values are for nuts and bolts in what condition? - ANS
✔✔Clean, dry threads
What may result if water is added to a nickel-cadmium battery when it is not fully charged? -
ANS ✔✔Excessive spewing is likely to occur during the charging cycle
What is thermal runaway of a nickel-cadmium battery? - ANS ✔✔Low internal resistance and a
high current discharge/charge rate
