Airframe Mechanic Certification Assembly and Rigging 2

Question 1

When rigging a conventional aircraft control system, what document establishes the correct cable tension values?

Accepted Answer

The manufacturer's maintenance or service manual

Answer

Cable tension specifications are aircraft-specific and must be obtained from the manufacturer's maintenance or service manual.

Question 2

A turnbuckle barrel is safety-wired using the double-wrap method. After safety wiring, at least how many wraps must be visible around each turnbuckle terminal shank?

Accepted Answer

Three wraps

Answer

FAA AC 43.13-1B requires a minimum of three wraps of safety wire around each turnbuckle terminal shank when using the double-wrap method.

Question 3

What is the primary purpose of wash-in and wash-out adjustments on an aircraft wing?

Accepted Answer

To control the spanwise lift distribution and stall characteristics

Answer

Wash-in (increasing angle of attack toward the tip) and wash-out (decreasing it) control spanwise lift distribution and stall progression.

Question 4

During aileron rigging, the left aileron is found to be 2° high (trailing edge up) and the right aileron is 2° low (trailing edge down) with the control wheel centered. This condition indicates:

Accepted Answer

The aileron cables have unequal tension

Answer

With the control wheel centered, both ailerons should be in the neutral (faired) position; unequal positions with centered controls indicate unequal cable tension.

Question 5

What tool is used to measure the tension of an aircraft control cable?

Accepted Answer

Cable tensiometer

Answer

A cable tensiometer (such as a T-5 or C-8 type) is the standard tool used to measure control cable tension.

Airframe Mechanic Certification Practice Test

Airframe Mechanic Certification Practice Test

Airframe Mechanic Certification Assembly and Rigging 2