ESCO Air Conditioning Exam ACTUAL EXAM
QUESTIONS WITH COMPLETE SOLUTION GUIDE (A+
GRADED 100% VERIFIED) LATEST VERSION 2025!!
Heat which causes a change in temperature of a substance is called -
(ANSWER)Sensible heat
Heat added to a substance without a rise in temperature - (ANSWER)Latent heat
Heat added to the refrigerant in a vapor state after the evaporation process is
called - (ANSWER)Superheat
Scroll compressor move refrigerant by - (ANSWER)Involute Spirals
The movement of heat by way of fluid is called - (ANSWER)Convection
The movement of heat by direct contact is - (ANSWER)Conduction
The standard unit for measuring the quantity of heat in a substance is -
(ANSWER)BTUs
Refrigerant gives up heat when - (ANSWER)It condenses
Why must refrigerant in the suction line be slightly warmer than the saturation
temperature? - (ANSWER)Prevent liquid slugging of the compressor
, The state of the refrigerant in the suction line should be - (ANSWER)Low pressure
/ Low temperature vapor
The state of the refrigerant entering the condenser is - (ANSWER)High pressure /
Highly superheated vapor
The evaporator - (ANSWER)Transfers heat from the refrigerated space to the
refrigerant
Which of the following is not a thermodynamic property of refrigerants -
(ANSWER)Flammability
The sequential order of steps in the vapor compressions process are -
(ANSWER)Compression, Condensation, Expansion, Vaporization
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 - (ANSWER)201 psig
Fan airflow pressures are usually measured in - (ANSWER)Inches of water column
0 pounds per square inch absolute is - (ANSWER)A pressure which cannot be
further reduced
QUESTIONS WITH COMPLETE SOLUTION GUIDE (A+
GRADED 100% VERIFIED) LATEST VERSION 2025!!
Heat which causes a change in temperature of a substance is called -
(ANSWER)Sensible heat
Heat added to a substance without a rise in temperature - (ANSWER)Latent heat
Heat added to the refrigerant in a vapor state after the evaporation process is
called - (ANSWER)Superheat
Scroll compressor move refrigerant by - (ANSWER)Involute Spirals
The movement of heat by way of fluid is called - (ANSWER)Convection
The movement of heat by direct contact is - (ANSWER)Conduction
The standard unit for measuring the quantity of heat in a substance is -
(ANSWER)BTUs
Refrigerant gives up heat when - (ANSWER)It condenses
Why must refrigerant in the suction line be slightly warmer than the saturation
temperature? - (ANSWER)Prevent liquid slugging of the compressor
, The state of the refrigerant in the suction line should be - (ANSWER)Low pressure
/ Low temperature vapor
The state of the refrigerant entering the condenser is - (ANSWER)High pressure /
Highly superheated vapor
The evaporator - (ANSWER)Transfers heat from the refrigerated space to the
refrigerant
Which of the following is not a thermodynamic property of refrigerants -
(ANSWER)Flammability
The sequential order of steps in the vapor compressions process are -
(ANSWER)Compression, Condensation, Expansion, Vaporization
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 - (ANSWER)201 psig
Fan airflow pressures are usually measured in - (ANSWER)Inches of water column
0 pounds per square inch absolute is - (ANSWER)A pressure which cannot be
further reduced
