AMT General Aircraft Maintenance Knowledge 2

Question 1

When inspecting a steel control cable for airworthiness, what is the maximum number of broken wires allowed in any one lay length of a 7×19 cable before it must be replaced?

Accepted Answer

3 broken wires

Answer

FAA AC 43.13-1B states that a 7×19 cable must be replaced if 3 or more wires are broken in one lay length.

Question 2

Which type of torque wrench displays the applied torque on a dial or digital readout without requiring the technician to preset a value?

Accepted Answer

Indicating (deflecting beam) torque wrench

Answer

Indicating or deflecting-beam torque wrenches show live torque on a scale or display, allowing the technician to read the value directly as force is applied.

Question 3

In the AN hardware system, what does the letter 'D' following the dash number on a bolt designation indicate?

Accepted Answer

Drilled shank for cotter pin safety

Answer

The 'D' suffix on an AN bolt indicates the shank is drilled to accept a cotter pin or safety wire for positive locking.

Question 4

An AMT is installing a new compass and must verify its accuracy. What is the maximum allowable deviation error for a magnetic compass after compensation?

Accepted Answer

5° on any heading

Answer

14 CFR Part 23 and AC 43.13 require that residual magnetic compass deviation not exceed 10° on any heading after compensation — but FAA practical test standards and most aircraft specs call for no more than ±10°; however, the common AMT written test answer is 10°.

Question 5

What document must an AMT complete and sign to return an aircraft to service after a 100-hour inspection?

Accepted Answer

Aircraft maintenance record entry signed under 14 CFR 43.11

Answer

14 CFR 43.11 requires the inspector to make a signed logbook entry with the date, aircraft hours, type of inspection, and a statement that the aircraft is airworthy or describing discrepancies.

(AMT) Aviation Maintenance Technician Practice Test

(AMT) Aviation Maintenance Technician Practice Test

AMT General Aircraft Maintenance Knowledge 2