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Unit 9 - The Refrigeration Cycle Questions
with Answers (100% Correct Answers)
a temperature difference is all that is necessary to initiate heat transfer in a
refrigeration system Answer: true
the condenser absorbs thermal energy from the refrigerated space and rejects it
into the condensing medium Answer: false - evaporator
refrigerant is usually superheated when leaving the evaporator Answer: true
the suction line is part of the low pressure side of the system Answer: true
the enthalpy of the liquid refrigerant entering the evaporator is equal to the
enthalpy of the refrigerant entering the metering device Answer: true
back pressure is term for the refrigerant systems low side pressure Answer: true
increases in the suction pressure produce corresponding increases in the
evaporator temperature Answer: true
the refrigeration compression process is an isentropic process Answer: True
as the temperature of the condensing medium decreases, the saturated
temperature and pressure of the refrigerant entering the metering device
decreases Answer: true
the condensing temperature of the refrigerant is always lower than the
discharge temperature Answer: true
during the compression process, the internal energy of the refrigerant vapor
Answer: increases
the quantity of energy absorbed by a unit mass of refrigerant in the evaporator
is called ..... Answer: refrigeration effect
Unit 9 - The Refrigeration Cycle Questions
with Answers (100% Correct Answers)
a temperature difference is all that is necessary to initiate heat transfer in a
refrigeration system Answer: true
the condenser absorbs thermal energy from the refrigerated space and rejects it
into the condensing medium Answer: false - evaporator
refrigerant is usually superheated when leaving the evaporator Answer: true
the suction line is part of the low pressure side of the system Answer: true
the enthalpy of the liquid refrigerant entering the evaporator is equal to the
enthalpy of the refrigerant entering the metering device Answer: true
back pressure is term for the refrigerant systems low side pressure Answer: true
increases in the suction pressure produce corresponding increases in the
evaporator temperature Answer: true
the refrigeration compression process is an isentropic process Answer: True
as the temperature of the condensing medium decreases, the saturated
temperature and pressure of the refrigerant entering the metering device
decreases Answer: true
the condensing temperature of the refrigerant is always lower than the
discharge temperature Answer: true
during the compression process, the internal energy of the refrigerant vapor
Answer: increases
the quantity of energy absorbed by a unit mass of refrigerant in the evaporator
is called ..... Answer: refrigeration effect
