HVAC EXAM 2025 WITH QUESTIONS AND 100%
CORRECT ANSWERS ALREADY GRADED A+
The standard unit for measuring the quantity of heat in a substance is? British Thermal Unit
A refrigerant gives up heat when it; it condenses
Why must refrigerant in the suction line be slightly warmer than the saturation temperature?
prevent liquid slugging of the compressor.
It is desirable for refrigerant in the suction line to be slightly superheated in order to;
insure liquid refrigerant does not enter the compressor.,
The state of the refrigerant in the suction line should be low pressure/ low temperature vapor
Heat which causes a change in temperature of a substance is called sensible heat,
Heat added to a substance without a rise in temperature; (example: liquid refrigerant to gas) this process la called?
latent heat
, HVAC EXAM 2025 WITH QUESTIONS AND 100%
CORRECT ANSWERS ALREADY GRADED A+
Heat added to the refrigerant in vapor state after the evaporation process is called, superheat
A scroll compressor moves refrigerant by means of; involute spirals
The movement of heat by way of fluid or is called; air convection
The movement of heat through a solid object is called;
radiation
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
, HVAC EXAM 2025 WITH QUESTIONS AND 100%
CORRECT ANSWERS ALREADY GRADED A+
The Evaporator
Transfers heat from the refrigerated space to the refrigerant
Which of the following is not a Thermodynamic Property of refrigerant Flammability
The sequential order of steps in the vapor-compression process are: Compression, Condensation, Expansion,
Vaporization
If a 30 lb container of $-410A refrigerant has been stored over night at 70 degrees F, the pressure in the cylinder should
be approximately
201 Degrees Faranheit
Fan Airflow pressures are usually measured in Inches of water column
Zero Psia (pounds per square inch absolute) is a pressure which cannot be further reduced
CORRECT ANSWERS ALREADY GRADED A+
The standard unit for measuring the quantity of heat in a substance is? British Thermal Unit
A refrigerant gives up heat when it; it condenses
Why must refrigerant in the suction line be slightly warmer than the saturation temperature?
prevent liquid slugging of the compressor.
It is desirable for refrigerant in the suction line to be slightly superheated in order to;
insure liquid refrigerant does not enter the compressor.,
The state of the refrigerant in the suction line should be low pressure/ low temperature vapor
Heat which causes a change in temperature of a substance is called sensible heat,
Heat added to a substance without a rise in temperature; (example: liquid refrigerant to gas) this process la called?
latent heat
, HVAC EXAM 2025 WITH QUESTIONS AND 100%
CORRECT ANSWERS ALREADY GRADED A+
Heat added to the refrigerant in vapor state after the evaporation process is called, superheat
A scroll compressor moves refrigerant by means of; involute spirals
The movement of heat by way of fluid or is called; air convection
The movement of heat through a solid object is called;
radiation
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
, HVAC EXAM 2025 WITH QUESTIONS AND 100%
CORRECT ANSWERS ALREADY GRADED A+
The Evaporator
Transfers heat from the refrigerated space to the refrigerant
Which of the following is not a Thermodynamic Property of refrigerant Flammability
The sequential order of steps in the vapor-compression process are: Compression, Condensation, Expansion,
Vaporization
If a 30 lb container of $-410A refrigerant has been stored over night at 70 degrees F, the pressure in the cylinder should
be approximately
201 Degrees Faranheit
Fan Airflow pressures are usually measured in Inches of water column
Zero Psia (pounds per square inch absolute) is a pressure which cannot be further reduced
