1. 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. c. Open area of wall and high on the wall. d. Behind appliances and low to the ground. 2. 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. d. Heat moves toward a place with a higher temperature. 3. Sensible heat describes _________________________. a. How fast heat will travel. b. The quantity of heat. c. The volume of heat. d. How hot something feels. 4. Latent heat measures _______________________. a. The temperature of heat in a substance. b. The quantity of heat in a substance. c. The velocity of heat in a substance. d. The heat potential of a substance. 5. Latent heat is measured in ____________________. a. Degrees Celsius, F ahrenheit and Kelvin b. International System of Units c. British Thermal Units d. Board of Trade Unit 6. If 1 pound of water warms to 60 degrees F from 55 degrees F, what btu of latent heat will it have absorbed? a. 2.5 b. 5 c. 10 d. 15 Study Online Instantly Click to Save 50% Now 7. What is the amount of heat energy required to evaporate 1 pound of water? a. 370 btu b. 570 btu c. 770 btu d. 970 btu 8. In an air conditioning and refrigeration system, what occurs in an evaporator? a. The refrigerant absorbs the latent heat. b. The refrigerant evaporates latent heat. c. Latent heat is condensed. d. Latent heat is released. 9. In an air conditioning and refrigeration system, what occurs in a condenser? a. The refrigerant absorbs the latent heat. b. The refrigerant releases the latent heat.