RIVETING

Question 1

The ________ is the most common type of rivet used in aircraft construction.

Answer 1

solid shank rivet

Question 2

Rivets should not be used in _______

Answer 2

thick materials or in tensile applications

Question 3

________ were developed specifically for the aircraft industry and designed as a replacement for both the round and brazier head rivets.
These rivets replaced all protruding head rivets and are used primarily where the protruding head has no aerodynamic significant. They have a flat area on the head, a head diameter twice the shank diameter, and a head height approximately 42.5 percent of the shank diameter.

Answer 3

Universal head rivets

Question 4

To determine the shear strength, the diameter of the rivet to be used must be found by ______

Answer 4

multiplying the thickness of the skin material by 3.

Question 5

The minimum spacing between protruding head rivets shall not be less than _______

Answer 5

3 1/2 times the rivet diameter.

Question 6

The minimum spacing between flush head rivets shall not be less than ________

Answer 6

4 times the diameter of the rivet.

Question 7

· When new sections are to be added, the edge distance measured from the center of the rivet should never be less than ___1____; the distance between rivets or pitch should be at least ____2___; and the
distance between rivet rows should never be less than ____3___

Answer 7

1. 2 times the diameter of the shank
2. 3 times the diameter
3. 2 1/2 times the diameter

Question 8

________, also called edge margin by some manufacturers, is the distance from the center of the first rivet to the edge of the sheet.

Answer 8

Edge distance

Question 9

______ is the distance between the centers of neighboring rivets in the same row.

Answer 9

Rivet pitch

Question 10

The smallest allowable rivet pitch is __1__ rivet diameters. The average rivet pitch usually ranges from __2___ rivet diameters, although in some instances rivet pitch could be as large as __3___ rivet diameters.

Answer 10

1. 3
2. 4 to 6
3. 10

Question 11

The minimum pitch also depends on the number of rows of rivets.
One-and three-row layouts have a minimum pitch of ______, a two-row layout has a minimum pitch of _______.

Answer 11

1. 3 rivet diameters
2. 4 rivet diameters

Question 12

___1___ is the perpendicular distance between rivet rows. It is usually ___2___ of the rivet pitch. The smallest allowable transverse pitch is __3__ rivet diameters.

Answer 12

1. Transverse pitch
2. 75 percent
3. 2 1/2

Question 13

The _____, sometimes called a dolly, bucking iron, or bucking block, is a heavy chunk of steel whose counter vibration during installation contributes to proper rivet installation.

Answer 13

bucking bar

Question 14

The _______ is a tool that cuts a cone-shaped depression around the rivet hole to allow the rivet to set flush with the surface of the skin.

Answer 14

countersink

Question 15

The ______ is the most common rivet upsetting tool used in airframe repair work.

Answer 15

pneumatic rivet gun

Question 16

Pneumatic guns operate on air pressure of _______ and are used in conjunction with interchangeable rivet sets

Answer 16

90 to 100 pounds per square inch

Question 17

If the rivet hole becomes enlarged, deformed, or otherwise damaged, drill or ream the hole for the _______.

Answer 17

next larger size rivet