Deck 20: Pipe Threads

Question 1

The thread face is also known as the thread _____. ​

A)crest​
B)root​
C)pitch​
D)flank​

Answer 1

D

Question 2

The top of the thread is called the _____. ​

A)crest​
B)root​
C)thread face​
D)thread flank​

Answer 2

A

Question 3

Most pipe-cutting dies are ground _____ to cut mild steel pipe.

A)deep​
B)horizontally​
C)vertically​
D)at an angle​

Answer 3

A

Question 4

What is the primary difference between a bolt and a machine screw? ​

Question 5

A _____ is a drill bit that is sized for the tap as being equal to the minor diameter of the threads to be cut. ​

A)tap drill​
B)drill press​
C)cutting drill​
D)torque wrench​

Question 6

The _____ of a pipe should be chamfered to help start the threading dies. ​

A)inside edge​
B)outside edge​
C)end​
D)length​

Question 7

What causes thermal hardening? ​

Question 8

_____ occurs when the threads are stressed beyond their shear strength. ​

A)Stripping​
B)Warping​
C)Galling​
D)Tightening​

Question 9

Once thread cutting oil is caught in a drip pan or bucket, it can be filtered to remove metal chips and then _____. ​

A)disposed of​
B)used for other purposes​
C)reused​
D)mixed with water​

Question 10

Galling may occur as threads are being _____. ​

Question 11

How should cutting oil be disposed of? ​

Question 12

What is the most accurate way of properly tightening bolts and screws? ​

Question 13

___ occurs when a nut or pipe is deformed out of round by the force being applied to it by a wrench. ​

A)Galling​
B)Tightening​
C)Stripping​
D)Warping​

Question 14

_____ are used with nuts and may be fully threaded or partially threaded with an unthreaded shank. ​

A)Bolts​
B)Machine screws​
C)Studs​
D)Cutting oils​

Question 15

_____ that are used for hand-threading operations are made from petroleum distillates or synthetic or semisynthetic compounds. ​

Question 16

An approved _____ "Oily Waste" safety disposal can must be used for storing oil-soaked rags. ​

Question 17

_____ occurs when the surfaces of the threads are torn away by excessive pressure resulting from overtightening. ​

A)Stripping​
B)Warping​
C)Galling​
D)Tightening​

Question 18

Pipe threads can be cut _____ with a power hand tool or with a pipe-threading machine. ​

Question 19

_____ are usually threaded all the way up to the head and are ¼-in. in diameter or smaller. ​

Question 20

What three terms are used to describe the dimensions of a common bolt? ​