Airframe Mechanic Certification Aircraft Fuel Systems 3

Question 1

What safety procedure must be performed before opening an aircraft fuel system for maintenance?

Accepted Answer

Bond and ground the aircraft to prevent static discharge and follow all fuel safety precautions

Answer

Aircraft must be properly bonded and grounded before fuel system maintenance to prevent static electricity ignition of fuel vapors, and all applicable fuel safety precautions must be followed.

Question 2

What inspection is required for a fuel tank after it has been repaired or resealed?

Accepted Answer

A pressure test to verify fuel-tight integrity and structural soundness

Answer

After repair or resealing, fuel tanks must be pressure tested to confirm they are fuel-tight and structurally sound before being returned to service per the maintenance manual.

Question 3

How often must fuel strainers and filters be inspected and cleaned according to FAA regulations?

Accepted Answer

At each 100-hour or annual inspection and per manufacturer's maintenance schedule

Answer

Fuel strainers and filters must be inspected and cleaned at each 100-hour or annual inspection, and at any additional intervals specified by the aircraft manufacturer's maintenance manual.

Question 4

What is 'misfueling' and what is a common serious consequence?

Accepted Answer

Putting the wrong type of fuel in an aircraft, which can cause engine failure or serious damage

Answer

Misfueling means adding the wrong fuel type (e.g., Jet-A into an avgas piston engine), which can cause immediate engine failure, detonation, or serious internal engine damage.

Question 5

What must be verified when replacing a fuel cap on a certificated aircraft?

Accepted Answer

The replacement cap must be an approved part identical to or compatible with the original per the maintenance manual

Answer

Fuel caps must be replaced with FAA-approved parts matching original specifications, as improper caps can cause venting failure, fuel leaks, or structural tank damage.

Airframe Mechanic Certification Practice Test

Airframe Mechanic Certification Practice Test

Airframe Mechanic Certification Aircraft Fuel Systems 3