Marine Refrigeration Test 1 - USCG Questions with all
Correct & 100% Verified Answers |Already Graded A+
How many BTUs must be added to one pound of water at 32 F to raise the temperature to 212
F? ✔Correct Answer-180 BTUs
which of the following statements is correct concerning heat transfer? ✔Correct Answer-heat
transfer rate is affected most by the temperature difference between the heat source and heat
sink
the rate of heat transfer from a hot region to a cold region is affected most by the ✔Correct
Answer-temperature difference between the regions
the definition of superheat refers to the amount of heat a substance contains and applies to
I. vapors
II. solids ✔Correct Answer-I only
the heat gained per pound of refrigerant in the evaporator is known as what? ✔Correct
Answer-refrigerating effect
in a refrigeration system, the heat normally producing the flash gas at the thermostatic
expansion valve, is obtained by what means? ✔Correct Answer-the portion of liquid
refrigerant which does not flash
'respiratory heat' is a term applied primarily to which of the following cargoes? ✔Correct
Answer-fresh vegetables
which of the listed statements describes specific heat ✔Correct Answer-the amount of heat
required to change the temperature of one pound of a material, one degree Fahrenheit
which of the following terms represents the form of heat removed from the refrigerant in the
condenser of a refrigeration system? ✔Correct Answer-all of the above (latent heat of
vaporization, heat of compression, superheat)
the heat removed from the refrigerant in the condenser of a refrigeration plant is known as
what? ✔Correct Answer-heat of compression
the only means of removing latent heat of condensation from a refrigerant in the normal
refrigeration cycle is by performing what process? ✔Correct Answer-condensing refrigerant in
the system condenser
Correct & 100% Verified Answers |Already Graded A+
How many BTUs must be added to one pound of water at 32 F to raise the temperature to 212
F? ✔Correct Answer-180 BTUs
which of the following statements is correct concerning heat transfer? ✔Correct Answer-heat
transfer rate is affected most by the temperature difference between the heat source and heat
sink
the rate of heat transfer from a hot region to a cold region is affected most by the ✔Correct
Answer-temperature difference between the regions
the definition of superheat refers to the amount of heat a substance contains and applies to
I. vapors
II. solids ✔Correct Answer-I only
the heat gained per pound of refrigerant in the evaporator is known as what? ✔Correct
Answer-refrigerating effect
in a refrigeration system, the heat normally producing the flash gas at the thermostatic
expansion valve, is obtained by what means? ✔Correct Answer-the portion of liquid
refrigerant which does not flash
'respiratory heat' is a term applied primarily to which of the following cargoes? ✔Correct
Answer-fresh vegetables
which of the listed statements describes specific heat ✔Correct Answer-the amount of heat
required to change the temperature of one pound of a material, one degree Fahrenheit
which of the following terms represents the form of heat removed from the refrigerant in the
condenser of a refrigeration system? ✔Correct Answer-all of the above (latent heat of
vaporization, heat of compression, superheat)
the heat removed from the refrigerant in the condenser of a refrigeration plant is known as
what? ✔Correct Answer-heat of compression
the only means of removing latent heat of condensation from a refrigerant in the normal
refrigeration cycle is by performing what process? ✔Correct Answer-condensing refrigerant in
the system condenser
