HVAC Practice Test Questions and Answers Rated A
Two locations where a cold air return should be installed:
a. Open area of wall and low to the ground.
b. Behind appliances and high on the wall. a. Open area of wall and low to the ground.
c. Open area of wall and high on the wall.
d. Behind appliances and low to the ground.
Which of the following is a law of thermodynamics:
a. Heat is a form of matter.
b. Heat moves toward a place with higher intensity. c. Heat moves toward a place with lower intensity.
c. Heat moves toward a place with lower intensity.
d. Heat moves toward a place with a higher temperature.
Sensible heat describes .
a. How fast heat will travel.
b. The quantity of heat. d. How hot something feels.
c. The volume of heat.
d. How hot something feels.
Latent heat measures .
a. The temperature of heat in a substance.
b. The quantity of heat in a substance. d. The heat potential of a substance.
c. The velocity of heat in a substance.
d. The heat potential of a substance.
Latent heat is measured in .
a. Degrees Celsius, F ahrenheit and Kelvin
b. International System of Units c. British Thermal Units
c. British Thermal Units
d. Board of Trade Unit
If 1 pound of water warms to 60 degrees F from 55
degrees F, what btu of latent heat will it have absorbed?
b. 5
a. 2.5
b. 5
1/5
, c. 10
d. 15
What is the amount of heat energy required to evaporate
1 pound of water?
a. 370 btu
d. 970 btu
b. 570 btu
c. 770 btu
d. 970 btu
In an air conditioning and refrigeration system, what oc-
curs in an evaporator?
a. The refrigerant absorbs the latent heat.
a. The refrigerant absorbs the latent heat.
b. The refrigerant evaporates latent heat.
c. Latent heat is condensed.
d. Latent heat is released.
In an air conditioning and refrigeration system, what oc-
curs in a condenser?
a. The refrigerant absorbs the latent heat.
b. The refrigerant releases the latent heat.
b. The refrigerant releases the latent heat.
c. Latent heat is pressurized.
d. Latent heat is increased.
In a sealed system, pressure and temperature
.
a. are inversely proportional
d. follow each other up and down
b. go in opposite directions up and down
c. are equal
d. follow each other up and down
Which of the following is not a type of compressor?
a. Lateral
a. Lateral
b. Reciprocating
c. Rotary
2/5
Two locations where a cold air return should be installed:
a. Open area of wall and low to the ground.
b. Behind appliances and high on the wall. a. Open area of wall and low to the ground.
c. Open area of wall and high on the wall.
d. Behind appliances and low to the ground.
Which of the following is a law of thermodynamics:
a. Heat is a form of matter.
b. Heat moves toward a place with higher intensity. c. Heat moves toward a place with lower intensity.
c. Heat moves toward a place with lower intensity.
d. Heat moves toward a place with a higher temperature.
Sensible heat describes .
a. How fast heat will travel.
b. The quantity of heat. d. How hot something feels.
c. The volume of heat.
d. How hot something feels.
Latent heat measures .
a. The temperature of heat in a substance.
b. The quantity of heat in a substance. d. The heat potential of a substance.
c. The velocity of heat in a substance.
d. The heat potential of a substance.
Latent heat is measured in .
a. Degrees Celsius, F ahrenheit and Kelvin
b. International System of Units c. British Thermal Units
c. British Thermal Units
d. Board of Trade Unit
If 1 pound of water warms to 60 degrees F from 55
degrees F, what btu of latent heat will it have absorbed?
b. 5
a. 2.5
b. 5
1/5
, c. 10
d. 15
What is the amount of heat energy required to evaporate
1 pound of water?
a. 370 btu
d. 970 btu
b. 570 btu
c. 770 btu
d. 970 btu
In an air conditioning and refrigeration system, what oc-
curs in an evaporator?
a. The refrigerant absorbs the latent heat.
a. The refrigerant absorbs the latent heat.
b. The refrigerant evaporates latent heat.
c. Latent heat is condensed.
d. Latent heat is released.
In an air conditioning and refrigeration system, what oc-
curs in a condenser?
a. The refrigerant absorbs the latent heat.
b. The refrigerant releases the latent heat.
b. The refrigerant releases the latent heat.
c. Latent heat is pressurized.
d. Latent heat is increased.
In a sealed system, pressure and temperature
.
a. are inversely proportional
d. follow each other up and down
b. go in opposite directions up and down
c. are equal
d. follow each other up and down
Which of the following is not a type of compressor?
a. Lateral
a. Lateral
b. Reciprocating
c. Rotary
2/5
