[D2L] 101L

Question 1

Work hardening is an increase in hardness and strength of a metal as result of deformation occurring at low temperatures.

T or F

Answer 1

True

Question 2

Brass is an Alloy made up of Copper and Zinc

Answer 2

True

Question 3

Annealing refers to a process of heating and slowly cooling a metal in order to toughen it and reduce brittleness.

Answer 3

True

Question 4

When does copper work harden?

Answer 4

After a bend

Question 5

1. Root
2. Crest
3. Pitch
4. Length

Answer 5

1. Inner valley between each thread
2. Outer edge of the inclined portion of the thread
3. Tip of one crest across to the tip of another crest.
4. distance measured from under the bolt head to the tip

Question 6

What is a set screw used for?

1) Retain a hub on a shaft
2) Retain a collar on a shaft
3) Retain a collar on a shaft
4) Retain a sleeve on a shaft
5) All of the above

Answer 6

All of the above

Question 7

The best sequence to torque several bolts is clockwise, tightening over 3 stages (1/3 at a time)

Answer 7

False, cross-pattern or star-pattern

Question 8

A bolt’s Crest is

Answer 8

the outer edge of the thread

Question 9

Removal of a seized bolt can be done by adding heat

Answer 9

True

Question 10

UNC in regards to bolts is

NPT

Answer 10

Unified National Coarse

National Pipe Thread