Question 1

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

Accepted Answer

A thread chaser is specifically designed to clean and repair the threads of a bolt without removing too much material, making it ideal for reuse.

Question 2

Sheet metal screws are also known as ________.

Accepted Answer

Sheet metal screws are designed to tap their own threads into the material they are being driven into, which is why they are also known as self-tapping screws.

Question 3

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

Accepted Answer

Damaged threads in an engine block can be repaired using either a threaded insert or a key lock insert. Both methods provide a way to restore the integrity of the threads, allowing for proper assembly and function.

Question 4

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

Accepted Answer

Flat washers are used to distribute the load of a threaded fastener, like a bolt or nut, providing an even clamping force over a larger area. This helps prevent damage to the surface being fastened and ensures a more secure and even attachment.

Question 5

All of these are types of snap rings EXCEPT ________.

Accepted Answer

All the options listed (E-clip, External, and Internal) are indeed types of snap rings, each designed for specific applications in securing components on shafts or within bores.

Question 6

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?

Accepted Answer

Both technicians are correct. "Christmas tree" clips are commonly used to attach door panels, and special tools are recommended to remove these clips without causing damage.

Question 7

Which type of fastener is used with a cotter pin?

Accepted Answer

Clevis pins are often used in conjunction with cotter pins. The clevis pin provides a pivot or attachment point, and the cotter pin secures the clevis pin in place to prevent it from slipping out.

Question 8

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?

Accepted Answer

Both statements are correct. A drill is typically used to remove a rivet by drilling out the center, and pop rivets are indeed one of the most common types of rivets used in various applications.

Question 9

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

Accepted Answer

Jam nuts are used on top of a regular nut to prevent loosening of the fastener by providing a tighter fit and reducing the chance of the primary nut loosening under vibration or movement.

Question 10

Which type nut is used with a cotter pin?

Accepted Answer

Castle nuts are designed to be used with a cotter pin to secure the nut in place, preventing it from loosening due to vibration or motion.

Question 11

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?

Accepted Answer

Penetrating oil needs time to work, so loosening immediately is not effective. Tapping with a hammer can help break the rust bond.

Question 12

The fastener shown (A) is called a ________.

Accepted Answer

The answer of The fastener shown (A) is called a...

Question 13

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

Accepted Answer

The answer of Which of these is called an "e-clip"?...

Question 14

Identify this thread repair kit.

Accepted Answer

The answer of Identify this thread repair kit. 
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Quiz 8: Fasteners and Thread Repair