AMT Sheet Metal Structural Repair Questions and Answers

Question 1

A technician discovers a 0.75-inch crack propagating from a rivet hole on a non-pressurized fuselage skin panel.
According to standard aviation maintenance practices, what is the first corrective action that must be taken?

Accepted Answer

Consult the aircraft's Structural Repair Manual (SRM).

Answer

Stop-drill the end of the crack to prevent further propagation.

Answer

Fabricate a doubler patch to cover the damaged area.

Answer

Immediately remove the rivet from the associated hole.

Question 2

In sheet metal layout for riveting, what is the term for the distance measured from the center of a rivet to the nearest edge of the metal?

Accepted Answer

Edge distance

Answer

Rivet pitch

Answer

Grip length

Answer

Transverse pitch

Question 3

A technician is performing a repair that specifies the use of a universal head rivet made from 2117-T4 aluminum alloy. What manufacturer's mark should the technician look for on the head of the correct rivet?

Accepted Answer

A small dimple

Answer

A raised dot

Answer

Two raised dashes

Answer

A plain, unmarked head

Question 4

A technician is fabricating a bracket from a sheet of 0.040-inch thick aluminum alloy. The plans call for a single 90-degree bend with an inside bend radius of 0.125 inches. What is the correct setback for this bend?

Accepted Answer

0.165 inches

Answer

0.085 inches

Answer

0.250 inches

Answer

0.205 inches

Question 5

When repairing damage to the skin of a pressurized aircraft fuselage, which type of patch is required to restore the necessary strength and maintain aerodynamic smoothness?

Accepted Answer

A flush patch.

Answer

A lap or scab patch.

Answer

An external patch with rounded corners.

Answer

A blister or hat-section patch.

Question 6

Which of the following tool combinations is used to properly install a solid shank rivet by forming the shop head?

Accepted Answer

A rivet gun and a bucking bar.

Answer

A drill motor and a deburring tool.

Answer

Cleco pliers and temporary fasteners.

Answer

A rivet cutter and a grip length gauge.

A technician discovers a 0.75-inch crack propagating from a rivet hole on a non-pressurized fuselage skin panel.According to standard aviation maintenance practices, what is the first corrective action that must be taken?

A technician discovers a 0.75-inch crack propagating from a rivet hole on a non-pressurized fuselage skin panel.
According to standard aviation maintenance practices, what is the first corrective action that must be taken?