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Refrigeration Exam|Brand New
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Multiple compressors provide: - Answer✅✅Capacity control
In a dry type (direct expansion) evaporator, liquid refrigerant must boil away as
close to the end of the coil as possible in order to: - Answer✅✅Operate at high
efficiency
The difference between the temperature of the refrigerant boiling in the evaporator
and the temperature at the evaporator outlet is known as: - Answer✅✅Evaporator
superheat.
An expansion device that is stick open will cause: - Answer✅✅A flooded evaporator
Superheat measurements are best taken: - Answer✅✅With the system operating
at design conditions.
A technician is checking the superheat on a multi-circuit evaporator and finds one of
the circuits has a superheat that is higher than the others. This could be caused by: -
Answer✅✅A blocked distributor
, A TEV with an external equalizer is used on: - Answer✅✅Evaporators with a high
pressure drop
Dry type evaporators operate most efficiently with a superheat setting of
approximately: - Answer✅✅8*F to 12*F
An evaporator used to chill liquids is operating with a normal superheat setting, but
the system is not cooling the product properly. Which of the following is the most
likely cause? - Answer✅✅overcharge of refrigerant
What time interval is required between each superheat adjustment? -
Answer✅✅10 to 15 min
When measuring evaporator superheat on a commercial system that has a long
suction line, the pressure reading should be taken at the: - Answer✅✅Evaporator
outlet
A low temperature evaporator used for cooling space or product refrigeration: -
Answer✅✅Must be defrosted periodically
Some special application use a flooded evaporator (operated full of refrigerant). In
order to maintain the proper level of liquid refrigerant, a _____ type metering device
is used. - Answer✅✅Low side float.
A properly functioning condenser will first: - Answer✅✅De-superheat, then sub-
cool.
The refrigerant condensing temperature in a water cooled condenser in normally
about ____ higher than the leaving water. - Answer✅✅10*F
Workable head pressure during periods of low ambient temperature can be
achieved by using: - Answer✅✅Fan-cycle control
The refrigerant in an air cooled condenser will normally condense at approximately
higher____ temperature then the air passing over it. - Answer✅✅30*F
Cooling towers that pass air over water to remove system heat are limited in
capacity by: - Answer✅✅Outside air wet bulb temperature.
Parallel compressors often referred to as a rack system may use: - Answer✅✅Both
common suction header and common discharge header.
The major difference between a cooling tower and an evaporative condenser is: -
Answer✅✅The refrigerant is indirectly cooled in a cooling tower.
Multiple compressors provide: - Answer✅✅Capacity control
Refrigeration Exam|Brand New
Exam Questions with 100% Correct
Clear Verified Answers|All Graded
A+|Latest Premium Update|100%
Guaranteed Success.
Multiple compressors provide: - Answer✅✅Capacity control
In a dry type (direct expansion) evaporator, liquid refrigerant must boil away as
close to the end of the coil as possible in order to: - Answer✅✅Operate at high
efficiency
The difference between the temperature of the refrigerant boiling in the evaporator
and the temperature at the evaporator outlet is known as: - Answer✅✅Evaporator
superheat.
An expansion device that is stick open will cause: - Answer✅✅A flooded evaporator
Superheat measurements are best taken: - Answer✅✅With the system operating
at design conditions.
A technician is checking the superheat on a multi-circuit evaporator and finds one of
the circuits has a superheat that is higher than the others. This could be caused by: -
Answer✅✅A blocked distributor
, A TEV with an external equalizer is used on: - Answer✅✅Evaporators with a high
pressure drop
Dry type evaporators operate most efficiently with a superheat setting of
approximately: - Answer✅✅8*F to 12*F
An evaporator used to chill liquids is operating with a normal superheat setting, but
the system is not cooling the product properly. Which of the following is the most
likely cause? - Answer✅✅overcharge of refrigerant
What time interval is required between each superheat adjustment? -
Answer✅✅10 to 15 min
When measuring evaporator superheat on a commercial system that has a long
suction line, the pressure reading should be taken at the: - Answer✅✅Evaporator
outlet
A low temperature evaporator used for cooling space or product refrigeration: -
Answer✅✅Must be defrosted periodically
Some special application use a flooded evaporator (operated full of refrigerant). In
order to maintain the proper level of liquid refrigerant, a _____ type metering device
is used. - Answer✅✅Low side float.
A properly functioning condenser will first: - Answer✅✅De-superheat, then sub-
cool.
The refrigerant condensing temperature in a water cooled condenser in normally
about ____ higher than the leaving water. - Answer✅✅10*F
Workable head pressure during periods of low ambient temperature can be
achieved by using: - Answer✅✅Fan-cycle control
The refrigerant in an air cooled condenser will normally condense at approximately
higher____ temperature then the air passing over it. - Answer✅✅30*F
Cooling towers that pass air over water to remove system heat are limited in
capacity by: - Answer✅✅Outside air wet bulb temperature.
Parallel compressors often referred to as a rack system may use: - Answer✅✅Both
common suction header and common discharge header.
The major difference between a cooling tower and an evaporative condenser is: -
Answer✅✅The refrigerant is indirectly cooled in a cooling tower.
Multiple compressors provide: - Answer✅✅Capacity control
