ESCO AIR CONDITIONING EXAM QUESTIONS WITH
ACCURATE ANSWERS
_________ can be use for a leak detection with all high-pressure refrigerant
correct answer Soap bubbles
0 pounds per square inch absolute is correct answer A pressure which cannot be
further reduced
0 pounds per square inch gauge is correct answer The same as atmospheric
pressure
10 pounds of refrigerant passing through a water 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 correct answer 100°F
A compound pressure gauge measures correct answer Pressure and vacuum
A compressor that has a broken reed valve will cause the symptoms correct
answer High suction pressure and low discharge pressure
A customer complains that their air conditioning system is running constantly, but
no cooling enough. The suction line is very cold in the compressor is sweating. The
most likely cause is correct answer a restriction of the return arir or a dirty
evaporator
, A customer reports that the residential split system had a compressor replaced
last week by another service company. Now the unit is not cooling property.
When you arrive and inspect the unit you find that the evaporator seems to be
starved for refrigerant. On examining the condensing unit, you find that the liquid
line is sweating where it leaves the dryer. This is most likely the result of correct
answer Debris from the burned out compressor has clog the dryer
A decrease in superheat causes the thermostatic expansion valve to begin to
correct answer Close
A dirty evaporator in an air conditioning system will cause the symptoms correct
answer Low suction pressure and low discharge pressure
A drain trap should be installed on a split system when the correct answer Air
handler drain is on the negative air side
A faulty condenser fan motor on an air conditioning system will cause the
symptoms correct answer High suction pressure and high discharge pressure
A liquid line filter-drier should be placed between the correct answer Condenser
and the Metering device
A liquid receiver is used to correct answer store liquid refrigerant
A liquid to suction heat exchanger is often used to correct answer increse liquid
subcooling
ACCURATE ANSWERS
_________ can be use for a leak detection with all high-pressure refrigerant
correct answer Soap bubbles
0 pounds per square inch absolute is correct answer A pressure which cannot be
further reduced
0 pounds per square inch gauge is correct answer The same as atmospheric
pressure
10 pounds of refrigerant passing through a water 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 correct answer 100°F
A compound pressure gauge measures correct answer Pressure and vacuum
A compressor that has a broken reed valve will cause the symptoms correct
answer High suction pressure and low discharge pressure
A customer complains that their air conditioning system is running constantly, but
no cooling enough. The suction line is very cold in the compressor is sweating. The
most likely cause is correct answer a restriction of the return arir or a dirty
evaporator
, A customer reports that the residential split system had a compressor replaced
last week by another service company. Now the unit is not cooling property.
When you arrive and inspect the unit you find that the evaporator seems to be
starved for refrigerant. On examining the condensing unit, you find that the liquid
line is sweating where it leaves the dryer. This is most likely the result of correct
answer Debris from the burned out compressor has clog the dryer
A decrease in superheat causes the thermostatic expansion valve to begin to
correct answer Close
A dirty evaporator in an air conditioning system will cause the symptoms correct
answer Low suction pressure and low discharge pressure
A drain trap should be installed on a split system when the correct answer Air
handler drain is on the negative air side
A faulty condenser fan motor on an air conditioning system will cause the
symptoms correct answer High suction pressure and high discharge pressure
A liquid line filter-drier should be placed between the correct answer Condenser
and the Metering device
A liquid receiver is used to correct answer store liquid refrigerant
A liquid to suction heat exchanger is often used to correct answer increse liquid
subcooling
