RI JOURNEYMAN REFRIGERATION LICENSE
EXAM FULL QUESTIONS AND ANSWERS
COMPLETE STUDY GUIDE
◉ What temperature scale freezes water at 0 and boils water at 100?
Answer: Celsius
◉ What are the 4 common temperature scales?
Answer: Fahrenheit, Celsius, Kelvin and Rankine
◉ What is specific heat?
Answer: The amount of heat required to raise 1 lb of a substance 1
degree F.
◉ What is sensible heat?
Answer: Heat that can be measured with a thermometer.
◉ What is latent heat?
Answer: The heat that is used to cause a change of state.
◉ Can both sensible and latent heat transfers be read with a
thermometer? (True or False)
,Answer: False
◉ What is a BTU?
Answer: British Thermal Unit - the amount of heat required to heat 1
pound of water 1 degrees Fahrenheit.
◉ What is heat energy measured in?
Answer: BTU
◉ What are the three states of matter?
Answer: solid, liquid and gas
◉ 1 ton of refrigeration is equal to how many BTU's?
Answer: 12,000 per hour
◉ What type of heat is absorbed or extracted from a substance when
the substance changes state?
Answer: Latent heat
◉ What is it called when a substance changes from a liquid to a gas?
Answer: Latent heat of vaporization
, ◉ What is it called when a substance changes from a gas to a liquid?
Answer: latent heat of condensation
◉ What is it called when a substance changes from a solid to a gas?
Answer: Latent heat of sublimation
◉ What is sublimation?
Answer: The process in which a solid changes directly into a gas
without becoming a liquid.
◉ In a refrigeration system heat is absorbed by what in the
evaporator?
Answer: Latent heat of vaporization
◉ In a refrigeration system heat is rejected by what in the
condenser?
Answer: Latent heat of condensation
◉ Frost is absorbed by what?
Answer: The evaporator
◉ What is adsorption?
EXAM FULL QUESTIONS AND ANSWERS
COMPLETE STUDY GUIDE
◉ What temperature scale freezes water at 0 and boils water at 100?
Answer: Celsius
◉ What are the 4 common temperature scales?
Answer: Fahrenheit, Celsius, Kelvin and Rankine
◉ What is specific heat?
Answer: The amount of heat required to raise 1 lb of a substance 1
degree F.
◉ What is sensible heat?
Answer: Heat that can be measured with a thermometer.
◉ What is latent heat?
Answer: The heat that is used to cause a change of state.
◉ Can both sensible and latent heat transfers be read with a
thermometer? (True or False)
,Answer: False
◉ What is a BTU?
Answer: British Thermal Unit - the amount of heat required to heat 1
pound of water 1 degrees Fahrenheit.
◉ What is heat energy measured in?
Answer: BTU
◉ What are the three states of matter?
Answer: solid, liquid and gas
◉ 1 ton of refrigeration is equal to how many BTU's?
Answer: 12,000 per hour
◉ What type of heat is absorbed or extracted from a substance when
the substance changes state?
Answer: Latent heat
◉ What is it called when a substance changes from a liquid to a gas?
Answer: Latent heat of vaporization
, ◉ What is it called when a substance changes from a gas to a liquid?
Answer: latent heat of condensation
◉ What is it called when a substance changes from a solid to a gas?
Answer: Latent heat of sublimation
◉ What is sublimation?
Answer: The process in which a solid changes directly into a gas
without becoming a liquid.
◉ In a refrigeration system heat is absorbed by what in the
evaporator?
Answer: Latent heat of vaporization
◉ In a refrigeration system heat is rejected by what in the
condenser?
Answer: Latent heat of condensation
◉ Frost is absorbed by what?
Answer: The evaporator
◉ What is adsorption?
