RI JOURNEYMAN REFRIGERATION LICENSE
EXAM UPDATED QUESTIONS AND CORRECT
ANSWERS
◉ The temperature scale that freezes water at 0 deg. and boils water
at 100 deg. is known as the __________ scale.
Answer: Centigrade
◉ The definition of specific heat is _______________________
Answer: the amount of heat required to raise 1 lb of a substance 1
deg. F.
◉ The definition of sensible heat is ______
Answer: the heat that can be measured by a thermometer.
◉ The definition of latent heat is ______
Answer: the heat used which causes a change of state
◉ The definition of a BTU is ________
Answer: the amount of heat required to raise 1 lb of water 1 deg. F
◉ Heat energy is measured in _________
,Answer: BTU
◉ Three states of matter are _________
Answer: Solid, Liquid, and Gas
◉ One ton of refrigeration is equal to __________
Answer: 12,000 btu per hour
◉ ____________ is the type of heat that is absorbed or extracted from a
substance when the substance changes state
Answer: Latent Heat
◉ When a substance changes from a liquid to a gas, this is known as
the________________
Answer: latent heat of vaporization
◉ When a substance changes from a gas to a liquid, this is known as
the________________
Answer: latent heat of condensation.
◉ When a substance changes from a solid to a gas, this is known as
the________________
Answer: the latent heat of sublimation
,◉ In a refrigeration system, heat is absorbed by ______________
Answer: the latent heat of vaporization in the evaporator.
◉ In a refrigeration system, heat is rejected by _________
Answer: the latent heat of condensation in the condenser.
◉ Frost is
Answer: adsorbed by the evaporator
◉ The relationship of absolute pressure on the low side to the
absolute pressure on the high side is called the ___________
Answer: compression ratio
◉ ________________________________ Is called the refrigerating effect
Answer: The amount of heat absorbed by the refrigerant used
◉ Generally speaking the ____________________ is the type of system that
gives the greatest rate of heat transfer
Answer: flooded evaporator
, ◉ ________________ the total amount of heat present in a given
substance.
Answer: Enthalpy is
◉ When hot air remains at the top of a room and cold air at the
bottom you will have an occurrence of a condition known as
___________
Answer: stratified air.
◉ The ____ State of a substance will have the highest heat content.
Answer: vapor
◉ One cubic foot of air at 50 deg F can absorb _____________
Answer: less moisture than it could at 100 deg. F.
◉ A Baudelot cooler ________________
Answer: is a heat exchanger
◉ When placed in a bucket of water, the refrigeration effect of 32
deg F. Ice will always be ______________
Answer: 144 btu per pound.
◉ ____________________________ Is called the ambient temperature.
EXAM UPDATED QUESTIONS AND CORRECT
ANSWERS
◉ The temperature scale that freezes water at 0 deg. and boils water
at 100 deg. is known as the __________ scale.
Answer: Centigrade
◉ The definition of specific heat is _______________________
Answer: the amount of heat required to raise 1 lb of a substance 1
deg. F.
◉ The definition of sensible heat is ______
Answer: the heat that can be measured by a thermometer.
◉ The definition of latent heat is ______
Answer: the heat used which causes a change of state
◉ The definition of a BTU is ________
Answer: the amount of heat required to raise 1 lb of water 1 deg. F
◉ Heat energy is measured in _________
,Answer: BTU
◉ Three states of matter are _________
Answer: Solid, Liquid, and Gas
◉ One ton of refrigeration is equal to __________
Answer: 12,000 btu per hour
◉ ____________ is the type of heat that is absorbed or extracted from a
substance when the substance changes state
Answer: Latent Heat
◉ When a substance changes from a liquid to a gas, this is known as
the________________
Answer: latent heat of vaporization
◉ When a substance changes from a gas to a liquid, this is known as
the________________
Answer: latent heat of condensation.
◉ When a substance changes from a solid to a gas, this is known as
the________________
Answer: the latent heat of sublimation
,◉ In a refrigeration system, heat is absorbed by ______________
Answer: the latent heat of vaporization in the evaporator.
◉ In a refrigeration system, heat is rejected by _________
Answer: the latent heat of condensation in the condenser.
◉ Frost is
Answer: adsorbed by the evaporator
◉ The relationship of absolute pressure on the low side to the
absolute pressure on the high side is called the ___________
Answer: compression ratio
◉ ________________________________ Is called the refrigerating effect
Answer: The amount of heat absorbed by the refrigerant used
◉ Generally speaking the ____________________ is the type of system that
gives the greatest rate of heat transfer
Answer: flooded evaporator
, ◉ ________________ the total amount of heat present in a given
substance.
Answer: Enthalpy is
◉ When hot air remains at the top of a room and cold air at the
bottom you will have an occurrence of a condition known as
___________
Answer: stratified air.
◉ The ____ State of a substance will have the highest heat content.
Answer: vapor
◉ One cubic foot of air at 50 deg F can absorb _____________
Answer: less moisture than it could at 100 deg. F.
◉ A Baudelot cooler ________________
Answer: is a heat exchanger
◉ When placed in a bucket of water, the refrigeration effect of 32
deg F. Ice will always be ______________
Answer: 144 btu per pound.
◉ ____________________________ Is called the ambient temperature.
