HVAC Refrigeration Final Practice Exam
Questions With Correct Answers Graded A+
Radiant heat Heat that passes through the air , not heating the air but heating solid objects
which in turns will heat the surrounding area
Sensible heat it changes the temperature of a substance without a change in its state
Latent heat (Hidden heat) heat causing a change of state,liquid to vapor/vapor to liquid
without a change in temperature
Specific heat the amount of heat needed to raise the temperature of 1 gram of a substance
by 1 degree Celsius
Barometer A device used to measure atmospheric pressure. 2 types , one mercury known
as a Mercury barometer
Superheat temperature above its saturation point(boiling point)
Subcooling temperature below its saturation point(boiling point)
The refrigerant gives up heat when
A.It condenses
Questions With Correct Answers Graded A+
Radiant heat Heat that passes through the air , not heating the air but heating solid objects
which in turns will heat the surrounding area
Sensible heat it changes the temperature of a substance without a change in its state
Latent heat (Hidden heat) heat causing a change of state,liquid to vapor/vapor to liquid
without a change in temperature
Specific heat the amount of heat needed to raise the temperature of 1 gram of a substance
by 1 degree Celsius
Barometer A device used to measure atmospheric pressure. 2 types , one mercury known
as a Mercury barometer
Superheat temperature above its saturation point(boiling point)
Subcooling temperature below its saturation point(boiling point)
The refrigerant gives up heat when
A.It condenses
