Tools and Fastners OBJ 102.4

Question 1

A 1/4 x 3 1/2 machine screw has ________ threads per inch.

a. 28
b. .25
c. 2.8
d. 4
e. 3.5

Answer 1

a. 28

Question 2

An 8-32 x 3 machine screw has a diameter of ________ inches.

a. .32
b. .164
c. .138
d. 8/32
e. 3

Answer 2

b. .164

Question 3

Which of these screws has the smallest shaft diameter?

a. 6-32
b. 10-32
c. 8-32
d. 12-24
e. 10-24

Answer 3

a. 6-32

Question 4

Which of the following are wire connectors?

I. split-bolt
II. compression connector
III. mechanical light

a. I, II, & III
b. I only
c. III only
d. I & III only
e. I & II only

Answer 4

d. I & III only

Question 5

Which of the following are wire connectors?

I. wire nuts
II. split-bolt
III. mechanical lug

a. I & III only
b. I & II only
c. I, II, & III
d. III only
e. II only

Answer 5

c. I, II, & III

Question 6

Generally, when a nut and bolt faster system is to be tightened a stationary backup wrench is placed on the nut and the bolt head is turned to tighten the assembly.

a. True
b. False

Answer 6

b. False