RI JOURNEYMAN REFRIGERATION LICENSE
EXAM VERIFIED TEST PAPER QUESTIONS AND
SOLUTIONS
◉ 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.
Answer: The temperature of the air that surrounds any object
◉ The highest temperature at which vapor can be liquified
regardless of the pressure applied is called ___________________
Answer: the critical temperature of a substance.
, ◉ The critical pressure of a substance is the pressure at which
____________
Answer: a liquid cannot become a vapor by adding heat.
◉ The boiling point of water ______________ when salt is added
Answer: increases
◉ Heat travels in accordance with the __________________
Answer: second law of thermodynamics.
◉ One degree day is __________________________
Answer: computed by taking the average of the highest and lowest
temperatures recorded for a given day and subtracting it from 65
deg. F
◉ The term "Volumetric Efficiency" is the ___________________
Answer: actual volume of vapor pumped divided by the calculated
volume.
◉ Refrigerant having either Chorine or Fluorine __________________
when in contact with flame.
Answer: can break down to phosgene
EXAM VERIFIED TEST PAPER QUESTIONS AND
SOLUTIONS
◉ 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.
Answer: The temperature of the air that surrounds any object
◉ The highest temperature at which vapor can be liquified
regardless of the pressure applied is called ___________________
Answer: the critical temperature of a substance.
, ◉ The critical pressure of a substance is the pressure at which
____________
Answer: a liquid cannot become a vapor by adding heat.
◉ The boiling point of water ______________ when salt is added
Answer: increases
◉ Heat travels in accordance with the __________________
Answer: second law of thermodynamics.
◉ One degree day is __________________________
Answer: computed by taking the average of the highest and lowest
temperatures recorded for a given day and subtracting it from 65
deg. F
◉ The term "Volumetric Efficiency" is the ___________________
Answer: actual volume of vapor pumped divided by the calculated
volume.
◉ Refrigerant having either Chorine or Fluorine __________________
when in contact with flame.
Answer: can break down to phosgene
