ESCO Air Conditioning Exam
0 pounds per square inch absolute is A pressure which cannot be further reduced
0 pounds per square inch gauge is The same as atmospheric pressure
10 pounds of refrigerant passing through a water 100°F
cooled condenser will lose 20 BTUs of heat per
pound. If 10 pounds of water passes through the
condenser with an entering temperature of 80°F the
temperature of the water leaving the condenser is
An accumulator is used to Prevent liquid refrigerant from reaching the compressor
After a system has been opened and the compressor Replace the filter dryer, leak check, evacuate, and charge
changed the service technician must
Air or other non-condensable gases in a capillary High suction pressure and high discharge pressure
tube air conditioning system will cause the symptoms
Page 1 of 15
, ESCO Air Conditioning Exam
And air-conditioning system that is oversized can Inefficient dehumidification of the condition space
cause
At a residential service call no cooling complaint, the Inert gas
service technician finds the unit to be completely out
of refrigerant. The technician decides to use a trace
amount of refrigerant and___in order to pressurize the
system
The automatic expansion valve is designed to Constant evaporator pressure
maintain
Back seating a two-way service valve results in Open service port with normal system flow
Bubbles in a sight glass would be an indication of TXV with an excessive superheat setting
_________ can be use for a leak detection with all high- Soap bubbles
pressure refrigerant
The clearance space in reciprocating compressor Has an effect on compressor capacity
Page 2 of 15
0 pounds per square inch absolute is A pressure which cannot be further reduced
0 pounds per square inch gauge is The same as atmospheric pressure
10 pounds of refrigerant passing through a water 100°F
cooled condenser will lose 20 BTUs of heat per
pound. If 10 pounds of water passes through the
condenser with an entering temperature of 80°F the
temperature of the water leaving the condenser is
An accumulator is used to Prevent liquid refrigerant from reaching the compressor
After a system has been opened and the compressor Replace the filter dryer, leak check, evacuate, and charge
changed the service technician must
Air or other non-condensable gases in a capillary High suction pressure and high discharge pressure
tube air conditioning system will cause the symptoms
Page 1 of 15
, ESCO Air Conditioning Exam
And air-conditioning system that is oversized can Inefficient dehumidification of the condition space
cause
At a residential service call no cooling complaint, the Inert gas
service technician finds the unit to be completely out
of refrigerant. The technician decides to use a trace
amount of refrigerant and___in order to pressurize the
system
The automatic expansion valve is designed to Constant evaporator pressure
maintain
Back seating a two-way service valve results in Open service port with normal system flow
Bubbles in a sight glass would be an indication of TXV with an excessive superheat setting
_________ can be use for a leak detection with all high- Soap bubbles
pressure refrigerant
The clearance space in reciprocating compressor Has an effect on compressor capacity
Page 2 of 15
