Airframe Mechanic Certification Aircraft Systems & Components 5

Question 1

What condition does a cracked or chafed pitot tube indicate regarding airworthiness?

Accepted Answer

The pitot tube must be replaced before flight

Answer

A cracked or chafed pitot tube compromises airspeed indication and is an unairworthy condition requiring replacement before flight.

Question 2

In aircraft fabric covering, what is the purpose of the dope applied over the fabric?

Accepted Answer

Tighten and weatherproof the fabric and provide a paintable surface

Answer

Dope tautens the fabric as it dries, seals it against moisture, and provides a base surface for finish coats.

Question 3

Which inspection method is most effective for detecting fatigue cracks in aluminum wing skin that are not visible to the naked eye?

Accepted Answer

Eddy current inspection

Answer

Eddy current inspection detects subsurface and surface cracks in non-ferrous metals like aluminum without requiring surface preparation.

Question 4

What is the function of an anti-ice system on the leading edge of a wing?

Accepted Answer

Prevent ice from forming on the leading edge surface

Answer

Anti-ice systems prevent ice from forming by heating or chemically treating the leading edge surface, while de-ice systems remove ice after it forms.

Question 5

When a technician finds that a turnbuckle in a control cable system is improperly safetied, what is the correct action?

Accepted Answer

Remove the existing safety wire, verify thread engagement, and re-safety properly

Answer

The turnbuckle must be checked for proper thread engagement (no more than 3 threads exposed), then re-safetied correctly per AC 43.13.

Airframe Mechanic Certification Practice Test