Chapter 8 Review

True or False? Refrigerants evaporate to release heat outside of the refrigerated space.

• True

• False

The evaporation of a fluid is an indication that _____ is being absorbed.

• acid

• air

• heat

• pressure

Volume is decreased inside the compressor, causing an increase in pressure and _____.

• condensation

• evaporation

• molecules

• temperature

The state of refrigerant that is capable of absorbing the most heat is _____.

• high-pressure liquid

• high-pressure vapor

• low-pressure liquid

• low-pressure vapor

True or False? The high side of the refrigeration system is where heat is absorbed and removed from the refrigerated space.

• True

• False

The high side of a refrigeration system is divided from the low side by the _____.

• liquid receiver

• condenser

• evaporator

• metering device

Low-side pressure may also be called _____ pressure.

• condenser

• discharge

• head

• suction

The reciprocating movement of a compressor piston _____.

• provides suction

• compresses the refrigerant

• Both A and B.

• Neither A nor B.

Refrigerant leaves the compressor discharge line and enters the condenser as a _____.

• low-pressure vapor

• high-pressure vapor

• low-pressure liquid

• high-pressure liquid

Operational balance is reached when the number of vapor molecules that condense into liquid in the condenser equals the number of _____.

• liquid refrigerant molecules in the liquid receiver

• lubricant molecules returned to the crankcase

• liquid molecules needed to fill the evaporator

• vapor refrigerant molecules pumped by the compressor