ESCO Air Conditioning Exam 2027 Q&A
Heat which causes a change in temperature of a Sensible heat
substance is called
Heat added to a substance without a rise in Latent heat
temperature
Heat added to the refrigerant in a vapor state after Superheat
the evaporation process is called
Scroll compressor move refrigerant by Involute Spirals
The movement of heat by way of fluid is called Convection
The movement of heat by direct contact is Conduction
The standard unit for measuring the quantity of heat in BTUs
a substance is
Refrigerant gives up heat when It condenses
2/4/2026
, ESCO Air Conditioning Exam 2027 Q&A
Why must refrigerant in the suction line be slightly Prevent liquid slugging of the compressor
warmer than the saturation temperature?
The state of the refrigerant in the suction line should Low pressure / Low temperature vapor
be
The state of the refrigerant entering the condenser is High pressure / Highly superheated vapor
The evaporator Transfers heat from the refrigerated space to the refrigerant
Which of the following is not a thermodynamic Flammability
property of refrigerants
The sequential order of steps in the vapor Compression, Condensation, Expansion, Vaporization
compressions process are
If a 30 pound cylinder of reclaimed R 410 a refrigerant 201 psig
has been stored overnight at 70° the pressure in the
cylinder should be approximately
2/4/2026
, ESCO Air Conditioning Exam 2027 Q&A
Fan airflow pressures are usually measured in Inches of water column
0 pounds per square inch absolute is A pressure which cannot be further reduced
0 pounds per square inch gauge is The same as atmospheric pressure
The temperature at which moisture will start to Dew point temperature
condense from the air is called
A compound pressure gauge measures Pressure and vacuum
Mechanical shaft seal is necessary on a Open drive compressor
Liquid slugging is Liquid refrigerant in the compressor clearance space
The clearance space in reciprocating compressor Has an effect on compressor capacity
Which of the following types of air conditioning Scroll
compressor is most energy-efficient
2/4/2026
Heat which causes a change in temperature of a Sensible heat
substance is called
Heat added to a substance without a rise in Latent heat
temperature
Heat added to the refrigerant in a vapor state after Superheat
the evaporation process is called
Scroll compressor move refrigerant by Involute Spirals
The movement of heat by way of fluid is called Convection
The movement of heat by direct contact is Conduction
The standard unit for measuring the quantity of heat in BTUs
a substance is
Refrigerant gives up heat when It condenses
2/4/2026
, ESCO Air Conditioning Exam 2027 Q&A
Why must refrigerant in the suction line be slightly Prevent liquid slugging of the compressor
warmer than the saturation temperature?
The state of the refrigerant in the suction line should Low pressure / Low temperature vapor
be
The state of the refrigerant entering the condenser is High pressure / Highly superheated vapor
The evaporator Transfers heat from the refrigerated space to the refrigerant
Which of the following is not a thermodynamic Flammability
property of refrigerants
The sequential order of steps in the vapor Compression, Condensation, Expansion, Vaporization
compressions process are
If a 30 pound cylinder of reclaimed R 410 a refrigerant 201 psig
has been stored overnight at 70° the pressure in the
cylinder should be approximately
2/4/2026
, ESCO Air Conditioning Exam 2027 Q&A
Fan airflow pressures are usually measured in Inches of water column
0 pounds per square inch absolute is A pressure which cannot be further reduced
0 pounds per square inch gauge is The same as atmospheric pressure
The temperature at which moisture will start to Dew point temperature
condense from the air is called
A compound pressure gauge measures Pressure and vacuum
Mechanical shaft seal is necessary on a Open drive compressor
Liquid slugging is Liquid refrigerant in the compressor clearance space
The clearance space in reciprocating compressor Has an effect on compressor capacity
Which of the following types of air conditioning Scroll
compressor is most energy-efficient
2/4/2026
