ASA TEST GUIDE ORAL AND
PRACTICAL (AIRFRAME)
LANDING GEAR SYSTEMS - Correct Answers -
What takes up the shocks of the landing impact in an oleo shock strut? - Correct
Answers -The metered transfer of oil from one compartment to another inside the shock
strut.
What takes up the taxi shocks in an oleo shock strut? - Correct Answers -The
compressed air or nitrogen.
How much oil should be put into an oleo shock strut? - Correct Answers -Deflate the
strut completely, remove the filler plug and fill the strut with oil to the level of the filler
plug.
What is the purpose of the centering cam in a nosewheel shock strut? - Correct
Answers -The centering cams forces the nosewheel straight back with the strut before it
is retracted into the nosewheel well.
How does a shimmy damper keep a nosewheel from shimmying? - Correct Answers -It
acts as a small hydraulic shock absorber between the piston and the cylinder of the
nosewheel shock strut.
What is the purpose of the debooster in a hydraulic power brake system? - Correct
Answers -The debooster decreases the pressure and increases the volume of fluid
going to the brakes. This gives the pilot better control of the brakes.
, What should be done to hydraulic brakes when the pedal has a spongy feel? - Correct
Answers -The spongy feel is caused by air in the brake. The brakes should be bled of
this air.
What is used in a split wheel to keep air from leaking between the two well halves? -
Correct Answers -An O-ring seal.
What causes an aircraft tire to wear more on the shoulders than in the center of the
thread? - Correct Answers -Operating the tire in an under inflated condition.
What causes an aircraft tire to wear more on the center of the thread than on the
shoulders? - Correct Answers -Operating the tire in an overinflated condition.
What should be done to an aircraft tire if the sidewalls are weather checked enough to
expose the chord? - Correct Answers -The tire should be scrapped.
Why is it important that some aircraft with retractable landing gear be given a retraction
test after new or retreated tires are installed? - Correct Answers -It is possible in some
aircraft that a new or retreated tire can be different enough in size from the previous tire
that it could lock up in the wheel well when the landing gear is retracted.
How is the correct amount of air in an oleo shock strut determined? - Correct Answers -
By the amount the strut extends out of the cylinder when the weight of the aircraft is on
it.
What should be done with a tire that was on a wheel which was overheated enough to
melt the fusible plug in the wheel? - Correct Answers -The tire should be scrapped.
Where can you find the correct inflation pressure for the tires of an aircraft? - Correct
Answers -In the aircraft service manual.
What is the purpose of the compensator port in the master cylinder of aircraft brakes? -
Correct Answers -The compensator port in the master cylinder opens the brake
reservoir to the wheel cylinders when the brakes are off. This prevent pressure from
building up in the brake lines and causing the brakes to drag.
What is the purpose of the shuttle valve in the brake system of an aircraft using
hydraulic power brakes? - Correct Answers -The shuttle valve is an automatic transfer
valve. It allows the brakes to be operated by hydraulic system pressure under all normal
conditions, but if this pressure is lost, it allows the brakes to be operated by the
emergency back up system.
How does an antiskid brake system keep the wheels of an aircraft from skidding on a
wet runway? - Correct Answers -The antiskid system monitors the rate of deceleration
of the wheels. If any wheel slows down faster than it should (as it would at the beginning
PRACTICAL (AIRFRAME)
LANDING GEAR SYSTEMS - Correct Answers -
What takes up the shocks of the landing impact in an oleo shock strut? - Correct
Answers -The metered transfer of oil from one compartment to another inside the shock
strut.
What takes up the taxi shocks in an oleo shock strut? - Correct Answers -The
compressed air or nitrogen.
How much oil should be put into an oleo shock strut? - Correct Answers -Deflate the
strut completely, remove the filler plug and fill the strut with oil to the level of the filler
plug.
What is the purpose of the centering cam in a nosewheel shock strut? - Correct
Answers -The centering cams forces the nosewheel straight back with the strut before it
is retracted into the nosewheel well.
How does a shimmy damper keep a nosewheel from shimmying? - Correct Answers -It
acts as a small hydraulic shock absorber between the piston and the cylinder of the
nosewheel shock strut.
What is the purpose of the debooster in a hydraulic power brake system? - Correct
Answers -The debooster decreases the pressure and increases the volume of fluid
going to the brakes. This gives the pilot better control of the brakes.
, What should be done to hydraulic brakes when the pedal has a spongy feel? - Correct
Answers -The spongy feel is caused by air in the brake. The brakes should be bled of
this air.
What is used in a split wheel to keep air from leaking between the two well halves? -
Correct Answers -An O-ring seal.
What causes an aircraft tire to wear more on the shoulders than in the center of the
thread? - Correct Answers -Operating the tire in an under inflated condition.
What causes an aircraft tire to wear more on the center of the thread than on the
shoulders? - Correct Answers -Operating the tire in an overinflated condition.
What should be done to an aircraft tire if the sidewalls are weather checked enough to
expose the chord? - Correct Answers -The tire should be scrapped.
Why is it important that some aircraft with retractable landing gear be given a retraction
test after new or retreated tires are installed? - Correct Answers -It is possible in some
aircraft that a new or retreated tire can be different enough in size from the previous tire
that it could lock up in the wheel well when the landing gear is retracted.
How is the correct amount of air in an oleo shock strut determined? - Correct Answers -
By the amount the strut extends out of the cylinder when the weight of the aircraft is on
it.
What should be done with a tire that was on a wheel which was overheated enough to
melt the fusible plug in the wheel? - Correct Answers -The tire should be scrapped.
Where can you find the correct inflation pressure for the tires of an aircraft? - Correct
Answers -In the aircraft service manual.
What is the purpose of the compensator port in the master cylinder of aircraft brakes? -
Correct Answers -The compensator port in the master cylinder opens the brake
reservoir to the wheel cylinders when the brakes are off. This prevent pressure from
building up in the brake lines and causing the brakes to drag.
What is the purpose of the shuttle valve in the brake system of an aircraft using
hydraulic power brakes? - Correct Answers -The shuttle valve is an automatic transfer
valve. It allows the brakes to be operated by hydraulic system pressure under all normal
conditions, but if this pressure is lost, it allows the brakes to be operated by the
emergency back up system.
How does an antiskid brake system keep the wheels of an aircraft from skidding on a
wet runway? - Correct Answers -The antiskid system monitors the rate of deceleration
of the wheels. If any wheel slows down faster than it should (as it would at the beginning
