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The scroll compressor is one type of reciprocating compressor.

A) True
B) False

Correct Answer

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Mufflers are used in many fully hermetic compressors to muffle compressor pulsation noise.

A) True
B) False

Correct Answer

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Because a scroll compressor's has fewer moving parts, it operates much quieter than other compressor designs and technologies.

A) True
B) False

Correct Answer

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Rotary compressors are used primarily in ____.


A) large industrial refrigeration and air conditioning systems
B) residential and light commercial air-conditioning
C) small commercial refrigeration units
D) high volume residential refrigeration

E) All of the above
F) A) and D)

Correct Answer

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The shell of a hermetic type reciprocating compressor is generally considered to be on the low pressure side of the system.

A) True
B) False

Correct Answer

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What causes may lead to liquid slugging a compressor with liquid refrigerant ?

Correct Answer

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Metering device overfeeding; low air cir...

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Liquid entering the compression chamber of a reciprocating compressor can lead to ____.


A) damaged valves
B) damaged piston rings
C) damaged expansion valves
D) Both a and b.

E) B) and C)
F) A) and D)

Correct Answer

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The hermetic reciprocating compressor motor is essentially made of the same materials as an open type compressor motor.

A) True
B) False

Correct Answer

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The temperature of the compressed gas leaving the compressor can best be described as ____.


A) cold
B) cool
C) warm
D) very warm

E) A) and B)
F) A) and C)

Correct Answer

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SEER is calculated based on the total amount of cooling (in BTU) the system will provide over the entire season, divided by the total number Watt-Hours it will consume .

A) True
B) False

Correct Answer

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Explain what happens to refrigerant that does not exit when the piston reaches top dead-center.

Correct Answer

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The small amount of ...

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A bolted together motor-compressor assembly is sometimes referred to as a semihermetic type .

A) True
B) False

Correct Answer

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The type of compressor that is driven by a belt is the ____________________ compressor.

Correct Answer

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open-drive...

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A compressor that has the motor and compressor in one housing that is welded together is called a(n) ____________________ type.

Correct Answer

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Pistons are connected to the crankshaft using connecting rods and ____________________.

Correct Answer

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Showing 21 - 35 of 35

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