Structures

What metal alloy is most often used in aircraft construction?

2 basic types of sheet metal structures used on aircraft are?

A repair to structure must restore original? (3 things)

The 5 basic stresses on an aircraft structure are?

The top of the wing spar is subject to tension or compression during flight?

The bottom of the wing is subject to compression or tension during flight?

A torsional stress is a combination of 2 stresses acting in different direction?

A properly designed rivet joint is subjected to what 2 stresses and loads?

If a properly designed rivet joint fails, the rivet will (shear or pull out of the sheet metal) first?

Aircraft structures are most likely to fail at points where stresses (concentrate or release) due to changes in (direction or cross sectional area).

To prevent a small crack from spreading you may to what to it?

Aluminum alloys (are or are not) suseptable to corrosion?

name the primary alloy agent in each aluminum alloy:
2117
2024
5056
7075

Commercially pure aluminum is identified by the number?

The most common alloy used in structures are?

Alclad is made of _______ and rolled onto heat treated aluminum

For alclad to be effective it must be protected from?

When aluminum is heated to its critical temperature and quenched it is (solution or precipitation) heat treated?

Artificial aging is another name for _____ heat treatment.

Aluminum alloys may be softened or hardened by annealing?

What is the temper designation for "as fabricated"

What is the temper designation for "Annealed"

What is the temper designation for "Solution heat treated"

What is the temper designation for "Solution heat treated and cold worked"

What is the temper designation for "Solution heat treated and artificially aged"

What is the temper designation for "Strain hardened to quarter temper"

What is the temper designation for "Strain hardened to full hard temper"

Magnesium is lighter or heavier than aluminum?

3 drawbacks to magnesium as a structural material are?

Titanium is used in areas where high ______ to ______ ratio is needed.

Stainless steel is suited to areas of _____ temperature.

Where is Stainless steel found commonly?

Aluminum alloy faced honeycomb panels are useful as a structural material because of their : 3 things

3 methods of preventing corrosion on aluminum?

What are the 3 requirements for corrosion of aluminum

Pure aluminum will or will not corrode?

A protective oxide film will form on aluminum alloy by what 2 means?

What are the 3 groups of stainless steel?

When repairing a puncture in an aluminum honeycomb panel with a doubler, how thick should it be?

Which group of stainless steels are magnetic?

which stainless steel group is not heat treatable?

What is the temper designation for "strain hardened"

What is the temper designation for "strain hardened and partially annealed"?

Designation "Hx4" on aluminum means what?

Aluminum alloy 3003 has what alloy agent?

6xxx series aluminum is primarily alloyed with?

4xxx series aluminum is primarily alloyed with?

5xxx series aluminum is primarily alloyed with?

7xxx aluminum is primarily alloyed with?

when using a scale for sheet metal layout you should measure from its end? t or f
True False

Scribes can be used to mark bend lines? t or f
True False

What should be used to layout sheet metal?

What can happen if lead pencil is used on hot section parts?

What is used to remove rivet tails?

When using a deburring tool be careful not to push to hard so as not to ?

What are the color codes for aviation snips?
right
left
straight

What is the most common way to cut sheet metal in a shop?

What color is a 3/32 cleco clamp?

what color are 1/8 " cleco clamps

what color are 5/32 cleco clamps

what color are 3/16 cleco clamps

what is commonly used to bend sheet metal?

Rivet lengths are measures in increments of___ and diameters are measured in increments of____.

Identify the head shape of ms20426.

Identify the head shape of ms20470.

Identify the head shape of an430.

Identify the head shape of an442.

Prior to installing a an426 rivet the metal must be____ or ____.

Identify the alloy of the rivets by the mark on the head.
-no mark
-dimple
-raised dot

Identify the alloy of the rivets by the mark on the head.
-raised dashes
-raised crosses

Identify the alloy of the rivets by the code.
-A
-B
-AD

Identify the alloy of the rivets by the code.
-D
-DD
-E

Magnesium skins should be riveted using rivet code__.

Rivet 2017 , identified by code D are commonly called ?

Rivets that can be installed without access to both sides are called?

What is the type of rivet creates a threaded hole for a machine screw once driven?

What 3 types of fasteners used on cowlings commonly?

On a properly driven rivet the width of the bucked side must be __ times the original size.

On a properly driven rivet the length of the bucked side must be __ times the original diameter size.

The head angle of an ms20426 rivet is _____ degrees?

When three sheets of metal are dimpled and stacked to be riveted together , they should be ________(coin or radius) dimpled

What type of dimpling is used on magnesium sheets to prevent them from cracking in the dimpling process?

An an470dd6 rivet would be driven by a (one shot or fast hitting) rivet gun?

When practical, bends should be made ( with the grain or across )?

Buddy riveting , bad rivet is how many taps?

Buddy riveting, how many taps for a good rivet?

Buddy riveting , how many taps to drive the rivet some more?

When installing rivets as per NACA , the manufactured head should be on the inside or outside of the structure?

The point of intersection of the mold lines of two sides of a bend is called?

The distance from the mold point to the bend tangent line is known as?

For a bend of 90 degrees, the setback is calculated with the formula : setback= ____+____

For a bend more or less than 90 degrees, we apply a correction factor known as?

The amount of material actually involved in the bend is known as?

What is done to lightning holes to increase stiffness ?

In order for sheet metal prices to be flat against skin and yet have one flat on top of another a process called ______ is used.

Shallow scratches in aluminum may be repaired by?p

When repairing a component or part , you should consult the ?

Why is an octagonal patch preferred to a rectangular patch on a high stressed area?

What can be used to replace a hi-shear rivet if you do not have the tools to do it in the field?

What tool is used to form a skin patch to the contour of the fuselage ?

When repairing floats , rivets should have this done ?

A sheet metal repair on a pressurized aircraft may require the use of?

Prior to cutting an inspection hole be sue it is in a ?

Control surface repairs must not add weight :