Quiz 2

What methods of inspection is performed on fiberglass/honeycomb structure for entrapped water?

Backlighting and x-rays

Why are Alloy 2117 rivets not heat-treated before they are driven?

Because it's already classified as heat treated , and it doesn't require re-heat treatment before driving

What is an indication of fretting corrosion streaming back from the rivets in an aircraft structure?

Black Residue

Describe how a coin tap test on composite structure is performed and how is separation of composite structure determined?

By tapping the structure with a coin or similar tool. Separation is determined by a dull sound.

What is rivet pitch?

Distance between rivets, 3-12in of shank diameter.

What is transverse pitch?

Distance between rows of rivets in a multi-row layout, should be about 75% of the pitch.

The shop, or bucked, head of a rivet should have what size of diameter?

One and a half times the shank diameter before being driven

When fabricating parts from Alclad 2024-T3 aluminum sheet stock, what type of damages must be held to a minimum to prevent exposing the alloy core through the pure aluminum surface coating?

Scratches and abrations

What is one of the main advantages of Hi-Lok type fasteners over earlier type fasteners?

They possess sufficient strength to withstand bearing/shearing load, which can be installed using conventional tools.

A rule of thumb for determining the rivet diameter to be used for repairing aircraft sheet metal is to use a rivet whose diameter is approximately three times the thickness of the sheet being joined?

Three times the thickness of the thickest sheet.

The stud length of Dzus fasteners is measured in what increment?

100ths of an inch