Deck 8: Fasteners and Thread Repair

Question 1

The thread pitch of a bolt is measured in what units?

A)Millimeters
B)Threads per inch
C)Fractions of an inch
D)Both A and B can be correct

Answer 1

Both A and B can be correct

Question 2

Technician A says that the diameter of a bolt is the same as the wrench size used to remove or install the fastener. Technician B says that the length is measured from the top of the head of the bolt to the end of the bolt. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Answer 2

Neither technician A nor B

Question 3

The grade of a fastener, such as a bolt, is a measure of its ________.

A)Hardness
B)Finish
C)Color
D)Tensile strength

Answer 3

Tensile strength

Question 4

Which of the following is a metric bolt?

A)8 mm
B)1/2-20
C)M12×1.5
D)5/16-18

Question 5

A bolt that is threaded into a casting is often called a ________.

A)Stud
B)Block bolt
C)Crest bolt
D)Cap screw

Question 6

The marks (lines) on the head of a bolt indicate ________.

A)Size
B)Tensile strength
C)Grade
D)Both B and C

Question 7

A bolt that requires a 1/2 inch wrench to rotate is usually what size when measured across the threads?

A)7/16 inch
B)5/16 inch
C)1/2 inch
D)3/8 inch

Question 8

A screw that can make its own threads when installed is called a ________ screw.

A)Sheet metal
B)Tapered
C)Self-tapping
D)Both A and C

Question 9

All of the following are types of clips EXCEPT ________.

A)C clip
B)Cotter
C)Internal snap ring
D)E clip

Question 10

What type of fastener is commonly used to retain interior door panels?

A)Internal clips
B)E clips
C)Christmas tree clips
D)External clips

Question 11

The number of threads per inch is referred to as ________.

A)Grade
B)Pitch
C)Gauge
D)None of these

Question 12

Metric thread pitch is measured in ________.

A)Centimeters
B)Millimeters
C)Inches
D)None of these

Question 13

The strength or classification of a bolt is known as ________.

A)Grade
B)Gauge
C)Pitch
D)None of these

Question 14

Hardware store nongraded bolts are suitable for use on suspension components.

Question 15

Metric bolt grade is indicated by ________.

A)Numbers on the head
B)Lines on the head
C)Both A and B
D)Neither A nor B

Question 16

Metric nut strength is indicated by ________.

A)Lines
B)Dimples
C)Both A and B
D)Neither A nor B

Question 17

Which of these is NOT a type of lock nut?

A)Castle nut and cotter pin
B)Nylon ring
C)Distorted
D)All of these are locking nuts

Question 18

Which of these is used to cut threads in a drilled hole?

A)Tap
B)Die
C)Both A and B
D)Neither A nor B

Question 19

Which of these may be used to restore damaged threads on a bolt?

A)Die
B)Tap
C)Both A and B
D)Neither A nor B

Question 20

The most commonly used tap is a ________.

A)Tapered tap
B)Bottoming tap
C)Both A and B
D)Neither A nor B

Question 21

Which of these is used to clean threads of a bolt to be reused?

A)Thread chaser
B)Die
C)Tap
D)None of these

Question 22

Sheet metal screws are also known as ________.

A)Machine screws
B)Self tapping screws
C)Hardened screws
D)None of these

Question 23

Damaged threads in an engine block can be repaired using which of these methods?

A)A threaded insert
B)A key lock insert
C)Either A of B
D)Neither A nor B

Question 24

Which type of washer is used to provide an even clamping force?

A)Flat washer
B)Star washer
C)Lock washer
D)None of these

Question 25

All of these are types of snap rings EXCEPT ________.

A)E-clip
B)External
C)Internal
D)All of these are snap rings

Question 26

Technician A says that door panels use "Christmas tree" clips. Technician B says that special tools should be used to remove door panel clips to prevent damage. Which technician is correct?

A)Technician A only
B)Both technicians A and B
C)Technician B only
D)Neither technician A nor B

Question 27

Which type of fastener is used with a cotter pin?

A)Taper pin
B)Roll pin
C)Clevis pin
D)None of these

Question 28

Technician A says that a drill is usually needed to remove a rivet. Technician B says that the most common rivet is a pop rivet. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 29

Which type nut is used on top of a regular nut to prevent loosening of the fastener?

A)Castle nut
B)Jam nut
C)Both A and B
D)Neither A nor B

Question 30

Which type nut is used with a cotter pin?

A)Castle nut
B)Nylon ring nut
C)Both A and B
D)Neither A nor B

Question 31

Technician A says that for best results, loosen the fastener immediately after spraying it with penetrating oil. Technician B says that rusted fasteners may be loosened by tapping with a hammer. Which technician is correct?

A)Neither technician A nor B
B)Technician B only
C)Technician A only
D)Both technicians A and B

Question 32

The fastener shown (A) is called a ________.

A)Hole nut
B)Torque nut
C)Stud locker nut
D)Castlellated nut

Question 33

Which of these is called an "e-clip"?

A)A
B)B
C)C
D)D

Question 34

Identify this thread repair kit.

A)Helicoil kit
B)Tap and die kit
C)Timesert kit
D)Key lock insert kit