Airframe Mechanic Certification Assembly and Rigging 4

Question 1

Which of the following cable materials is NOT recommended for primary flight control systems due to its susceptibility to corrosion?

Accepted Answer

Both B and C

Answer

Both uncoated and galvanized carbon steel cables corrode more readily than stainless steel and are not recommended for primary flight controls in corrosive environments.

Question 2

What is the purpose of a 'sector' (or quadrant) in a flight control system?

Accepted Answer

It converts linear cable motion to rotational motion at the control surface

Answer

A sector (quadrant) is a curved drum or arc that converts the linear pull of a cable into rotational movement to deflect a control surface.

Question 3

After replacing a flight control cable, which of the following is the LAST step before returning the aircraft to service?

Accepted Answer

Performing a complete functional check of the control system through full travel

Answer

A complete functional check through full travel is the final verification that the entire system operates correctly and without binding before return to service.

Question 4

A control cable shows a broken wire strand on the outside of a bend near a pulley. Per AC 43.13-1B, this cable should be:

Accepted Answer

Replaced immediately

Answer

AC 43.13-1B requires replacement of any cable with a broken wire at a bend, as this indicates fatigue and the cable's integrity is compromised.

Question 5

Wing dihedral angle is measured as the angle between the:

Accepted Answer

Spanwise axis of the wing and the horizontal plane

Answer

Dihedral angle is the upward angle of the wing's spanwise axis (or a reference line along the wing) relative to the horizontal plane.

Airframe Mechanic Certification Practice Test

Airframe Mechanic Certification Practice Test

Airframe Mechanic Certification Assembly and Rigging 4