ESCO Light Commercial Refrigeration EXAM Questions and Answers With
Verified Solutions 2025
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: - ✔✔
The difference between the temperature of the refrigerant boiling in the evaporator and the
temperature at theevaporator outlet is known as: - ✔✔
An expansion device that is stuck open will cause: - ✔✔
When measuring evaporator superheat on a commercial system that has a long suction line, the
pressure reading should be taken at the: - ✔✔
Superheat measurements are best taken: - ✔✔
Atechnician 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: - ✔✔
A TEV with an external equalizer is used on: - ✔✔
Dry type evaporators operate most efficiently with a superheat setting of approximately: - ✔✔
An evaporator used to chill liquids si operating with a normal superheat setting, but the system is not
cooling the product properly. Which of the following is the most likely cause? - ✔✔
What time interval is required between each superheat adjustment? - ✔✔
Alow temperature evaporator used for cooling space or product refrigeration: - ✔✔
, Some special applications use aflooded evaporator (operated full of refrigerant). nI order to maintain
the proper level of liquid refrigerant, a
type metering device is used. - ✔✔
A properly functioning condenser will first; - ✔✔
The effect of an inefficient water cooled condenser will; - ✔✔
The refrigerant condensing temperature in a water cooled condenser is normally about
higher than the leaving water. - ✔✔
The refrigerant in an air cooled condenser will normally condense at approximately
higher temperature than the air passing over it. - ✔✔
Workable head pressure during periods of lowambient temperature can be achieved by using; - ✔✔
Cooling towers that pass air over water to remove system heat are limited in capacity by: - ✔✔
Parallel compressors often referred to as a rack system may use; - ✔✔
The major difference between a cooling tower and an evaporative condenser is: - ✔✔
Multiple compressors provide: - ✔✔
Adirty evaporator and subsequent low evaporator pressures will cause: - ✔✔
he thermostatic expansion valve (TV) maintains a constant__________ in the evaporator. - ✔✔
What type of ice si made with a commercial cie maker that uses a gear motor and auger? - ✔✔
Verified Solutions 2025
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: - ✔✔
The difference between the temperature of the refrigerant boiling in the evaporator and the
temperature at theevaporator outlet is known as: - ✔✔
An expansion device that is stuck open will cause: - ✔✔
When measuring evaporator superheat on a commercial system that has a long suction line, the
pressure reading should be taken at the: - ✔✔
Superheat measurements are best taken: - ✔✔
Atechnician 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: - ✔✔
A TEV with an external equalizer is used on: - ✔✔
Dry type evaporators operate most efficiently with a superheat setting of approximately: - ✔✔
An evaporator used to chill liquids si operating with a normal superheat setting, but the system is not
cooling the product properly. Which of the following is the most likely cause? - ✔✔
What time interval is required between each superheat adjustment? - ✔✔
Alow temperature evaporator used for cooling space or product refrigeration: - ✔✔
, Some special applications use aflooded evaporator (operated full of refrigerant). nI order to maintain
the proper level of liquid refrigerant, a
type metering device is used. - ✔✔
A properly functioning condenser will first; - ✔✔
The effect of an inefficient water cooled condenser will; - ✔✔
The refrigerant condensing temperature in a water cooled condenser is normally about
higher than the leaving water. - ✔✔
The refrigerant in an air cooled condenser will normally condense at approximately
higher temperature than the air passing over it. - ✔✔
Workable head pressure during periods of lowambient temperature can be achieved by using; - ✔✔
Cooling towers that pass air over water to remove system heat are limited in capacity by: - ✔✔
Parallel compressors often referred to as a rack system may use; - ✔✔
The major difference between a cooling tower and an evaporative condenser is: - ✔✔
Multiple compressors provide: - ✔✔
Adirty evaporator and subsequent low evaporator pressures will cause: - ✔✔
he thermostatic expansion valve (TV) maintains a constant__________ in the evaporator. - ✔✔
What type of ice si made with a commercial cie maker that uses a gear motor and auger? - ✔✔
