ESCO Refrigeration Test 1&2
Comprehensive Resource To Help You Ace 2026-2027
Includes Frequently Tested 200 Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. Heat which causes a change in temperature of a substance is called -
Correct Answer: sensible heat
2. Heat which causes a change in state of a material without a change in
temperature is called; - Correct Answer: latent heat
3. Heat which is added to a vapor after the change of state occurs is called; -
Correct Answer: Superheat
4. Heat can travel by: - Correct Answer: conduction, convection, radiation
5. The movement of heat by way of fluid (or air) is called; - Correct
Answer: Convection
6. The movement of heat by direct contact is called - Correct Answer:
Conduction
7. The standard unit for measuring the quantity of heat in a substance is -
Correct Answer: British Thermal unit (BTU)
,8. A refrigerant gives up heat when - Correct Answer: It condenses
9. It is desirable for refrigerant in the suction line to be slightly superheated in
order to; - Correct Answer: Ensure liquid refrigerant does not enter the
compressor
10.The state of the refrigerant in the suction line should be - Correct
Answer: Low pressure/ low temperature vapor
11.The state of the refrigerant entering the condenser is - Correct Answer:
High pressure/ highly superheated vapor
12.The evaporator - Correct Answer: Transfers heat from the refrigerated
space to the refrigerant
13.which is not a thermodynamic property of refrigerants - Correct
Answer: Flammability
14.The sequential order of steps in the vapor- compression process are -
Correct Answer: Compression, condensation, expansion, and vaporization
15.If a 30 pound cylinder of reclaimed R 410 a refrigerant has been stored
overnight at 70° the pressure in the cylinder should be approximately -
Correct Answer: 201 PSIG
, 16.Zero psia (pounds per square inch absolute) is; - Correct Answer: A
pressure which cannot be further reduced
17.Zero Psig (pounds per square inch gauge) - Correct Answer: The same as
atmospheric pressure
18.The temperature at which moisture will start to condense from the air is
called - Correct Answer: dew point temperature
19.A compound pressure gauge measures - Correct Answer: Pressure and
vacuum
20.the main function of the condenser is to... - Correct Answer: remove
heat from the refrigerant
21.The heat removed from the refrigerant by the condenser is - Correct
Answer: both sensible and latent heat
22.In the evaporator - Correct Answer: Latent heat is transferred from the
refrigerated space to the refrigerant
23.An overcharge of refrigerant will cause - Correct Answer: increased
head pressure
Comprehensive Resource To Help You Ace 2026-2027
Includes Frequently Tested 200 Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. Heat which causes a change in temperature of a substance is called -
Correct Answer: sensible heat
2. Heat which causes a change in state of a material without a change in
temperature is called; - Correct Answer: latent heat
3. Heat which is added to a vapor after the change of state occurs is called; -
Correct Answer: Superheat
4. Heat can travel by: - Correct Answer: conduction, convection, radiation
5. The movement of heat by way of fluid (or air) is called; - Correct
Answer: Convection
6. The movement of heat by direct contact is called - Correct Answer:
Conduction
7. The standard unit for measuring the quantity of heat in a substance is -
Correct Answer: British Thermal unit (BTU)
,8. A refrigerant gives up heat when - Correct Answer: It condenses
9. It is desirable for refrigerant in the suction line to be slightly superheated in
order to; - Correct Answer: Ensure liquid refrigerant does not enter the
compressor
10.The state of the refrigerant in the suction line should be - Correct
Answer: Low pressure/ low temperature vapor
11.The state of the refrigerant entering the condenser is - Correct Answer:
High pressure/ highly superheated vapor
12.The evaporator - Correct Answer: Transfers heat from the refrigerated
space to the refrigerant
13.which is not a thermodynamic property of refrigerants - Correct
Answer: Flammability
14.The sequential order of steps in the vapor- compression process are -
Correct Answer: Compression, condensation, expansion, and vaporization
15.If a 30 pound cylinder of reclaimed R 410 a refrigerant has been stored
overnight at 70° the pressure in the cylinder should be approximately -
Correct Answer: 201 PSIG
, 16.Zero psia (pounds per square inch absolute) is; - Correct Answer: A
pressure which cannot be further reduced
17.Zero Psig (pounds per square inch gauge) - Correct Answer: The same as
atmospheric pressure
18.The temperature at which moisture will start to condense from the air is
called - Correct Answer: dew point temperature
19.A compound pressure gauge measures - Correct Answer: Pressure and
vacuum
20.the main function of the condenser is to... - Correct Answer: remove
heat from the refrigerant
21.The heat removed from the refrigerant by the condenser is - Correct
Answer: both sensible and latent heat
22.In the evaporator - Correct Answer: Latent heat is transferred from the
refrigerated space to the refrigerant
23.An overcharge of refrigerant will cause - Correct Answer: increased
head pressure
