Chapter 75

Question 0

Compressed air tools tend to be:
A) heavier than equivalent electrical tools
B) damaged by overloading
C) hot after prolonged operation
D) more expensive than electrical tools
E) less safe than electrical tools in explosive atmospheres

Answer 0

D) more expensive than electrical tools

Question 1

In order to protect the driver, a start stop air compressor should be equipped with:
A) an inter cooler
B) an automatic blowdown system
C) safety heads
D) pre start automatic unloading
E) manual cylinder bleed petcocks

Answer 1

D) pre start automatic unloading

Question 2

The two general types of air compressors are:

Answer 2

Positive displacement, dynamic

Question 3

Heat exchangers used to cool the air between stages of an air compressor are called:

Answer 3

Intercoolers

Question 4

List three benefits of using an air receiver in an air compression system:

Answer 4

Acts as a reservoir for the storage of compressed air
Dampens pulsation in the compressed air system
Provides a point for moisture and oil to separate from the compressed air system