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11. ACR-104 UNIT 23 PRACTICE TEST

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

The two housings used for reciprocating compressors are ___________.

a)

hermetic and open

b)

rotary and open

c)

rotary and semi-hermetic

d)

centrifugal and screw

2.

Open-drive compressors are manufactured in two styles, ____________.

a)

direct drive and rigid drive

b)

belt drive and automatic drive

c)

belt drive and direct drive

d)

pneumatic and electronic

3.

A _________ in a reciprocating compressor transmits the circular motion of the rods into a back-and-forth motion for the pistons.

a)

reed valves

b)

muffler

c)

valve plate

d)

crankshaft

4.

Connecting rods connect the crankshaft to the valve plate.

a)

True

b)

False

5.

The part of the cylinder assembly that is exposed to high-pressure gas during compression is the _________.

a)

connecting rods

b)

valve plate

c)

piston

d)

crankshaft

6.

The ________, located between the head of the compressor and the top of the cylinder wall, holds the suction and discharge flapper valves.

a)

valve plate

b)

muffler

c)

piston

d)

crankshaft

7.

A compressor that has few moving parts, operates quieter than other models and at a higher efficiency is a ____________ compressor.

a)

scroll

b)

screw

c)

rotary

d)

reciprocating

8.

Scroll compressors can use radial movement, which allow the compressor to handle small amounts of liquid.

a)

True

b)

False

9.

In a scroll compressor, there are no volumetric losses through gas re-expansion as with piston-type compressors.

a)

True

b)

False

10.

_________ compressors are refrigeration compressors that are available with capacity modulation from 10% to 100%.

a)

Open-drive

b)

Discus

c)

Rotary

d)

Reciprocating