ESCO AIR CONDITIONING
ESCO Air Conditioning Exam latest Update
With A+ Guaranteed Solutions.
Heat which causes a change in temperature of a substance is called - ✔✔✔ - Sensible heat
Heat added to a substance without a rise in temperature - ✔✔✔ - Latent heat
Heat added to the refrigerant in a vapor state after the evaporation process is called - ✔✔✔ -
Superheat
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 a substance is - ✔✔✔ - BTUs
Refrigerant gives up heat when - ✔✔✔ - It condenses
Why must refrigerant in the suction line be slightly warmer than the saturation temperature? -
✔✔✔ - Prevent liquid slugging of the compressor
The state of the refrigerant in the suction line should be - ✔✔✔ - Low pressure / Low
temperature vapor
ESCO AIR CONDITIONING Page 1
, ESCO AIR CONDITIONING
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 property of refrigerants - ✔✔✔ - Flammability
The sequential order of steps in the vapor compressions process are - ✔✔✔ - 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 - ✔✔✔ - 201 psig
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 condense from the air is called - ✔✔✔ - Dew
point temperature
A compound pressure gauge measures - ✔✔✔ - Pressure and vacuum
Mechanical shaft seal is necessary on a - ✔✔✔ - Open drive compressor
ESCO AIR CONDITIONING Page 2
ESCO Air Conditioning Exam latest Update
With A+ Guaranteed Solutions.
Heat which causes a change in temperature of a substance is called - ✔✔✔ - Sensible heat
Heat added to a substance without a rise in temperature - ✔✔✔ - Latent heat
Heat added to the refrigerant in a vapor state after the evaporation process is called - ✔✔✔ -
Superheat
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 a substance is - ✔✔✔ - BTUs
Refrigerant gives up heat when - ✔✔✔ - It condenses
Why must refrigerant in the suction line be slightly warmer than the saturation temperature? -
✔✔✔ - Prevent liquid slugging of the compressor
The state of the refrigerant in the suction line should be - ✔✔✔ - Low pressure / Low
temperature vapor
ESCO AIR CONDITIONING Page 1
, ESCO AIR CONDITIONING
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 property of refrigerants - ✔✔✔ - Flammability
The sequential order of steps in the vapor compressions process are - ✔✔✔ - 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 - ✔✔✔ - 201 psig
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 condense from the air is called - ✔✔✔ - Dew
point temperature
A compound pressure gauge measures - ✔✔✔ - Pressure and vacuum
Mechanical shaft seal is necessary on a - ✔✔✔ - Open drive compressor
ESCO AIR CONDITIONING Page 2
