Assembly and Rigging Flashcards
7 cards from real Airframe Mechanic Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Assembly and Rigging flashcards as text
Which of the following cable materials is NOT recommended for primary flight control systems due to its susceptibility to corrosion?
Answer: Both B and C
Both uncoated and galvanized carbon steel cables corrode more readily than stainless steel and are not recommended for primary flight controls in corrosive environments.
What is the purpose of a 'sector' (or quadrant) in a flight control system?
Answer: It converts linear cable motion to rotational motion at the control surface
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.
After replacing a flight control cable, which of the following is the LAST step before returning the aircraft to service?
Answer: Performing a complete functional check of the control system through full travel
A complete functional check through full travel is the final verification that the entire system operates correctly and without binding before return to service.
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:
Answer: Replaced immediately
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.
Wing dihedral angle is measured as the angle between the:
Answer: Spanwise axis of the wing and the horizontal plane
Dihedral angle is the upward angle of the wing's spanwise axis (or a reference line along the wing) relative to the horizontal plane.
During assembly of a fabric-covered biplane, the wings must be aligned so that there is no 'stagger error.' Stagger refers to:
Answer: The fore-and-aft offset of the upper wing relative to the lower wing
Stagger is the fore-and-aft (longitudinal) displacement of the upper wing's leading edge relative to the lower wing's leading edge.
When installing a clevis pin in a flight control linkage, what secures the clevis pin to prevent it from backing out?
Answer: A cotter pin through the drilled hole in the shank
Clevis pins used in control linkages are typically secured by a cotter pin inserted through a hole drilled through the end of the pin's shank.