ESCO AIR CONDITIONING EXAM QUESTIONS AND ANSWERS A
COMPLETE SOLUTION THAT COVERS 2024/2025 ALL ANSWERS
100% CORRECT DETAILED BEST RATED TO SCORE A+ FOR PASS
The sequential order of steps in the vapor compressions process are - CORRECT ANSWERS
Compression, Condensation, Expansion, Vaporization
If a 30 pound cylinder of reclaimed R 410 a refrigerant has been stored overnight at 70° the
pressure in the cylinder should be approximately - CORRECT ANSWERS 201 psig
Fan airflow pressures are usually measured in - CORRECT ANSWERS Inches of water column
0 pounds per square inch absolute is - CORRECT ANSWERS A pressure which cannot be further
reduced
0 pounds per square inch gauge is - CORRECT ANSWERS The same as atmospheric pressure
The temperature at which moisture will start to condense from the air is called - CORRECT
ANSWERS Dew point temperature
A compound pressure gauge measures - CORRECT ANSWERS Pressure and vacuum
Mechanical shaft seal is necessary on a - CORRECT ANSWERS Open drive compressor
Liquid slugging is - CORRECT ANSWERS Liquid refrigerant in the compressor clearance space
The clearance space in reciprocating compressor - CORRECT ANSWERS Has an effect on
compressor capacity
Which of the following types of air conditioning compressor is most energy-efficient - CORRECT
ANSWERS Scroll
, ESCO AIR CONDITIONING EXAM QUESTIONS AND ANSWERS A
COMPLETE SOLUTION THAT COVERS 2024/2025 ALL ANSWERS
100% CORRECT DETAILED BEST RATED TO SCORE A+ FOR PASS
Which of the following represent the right order for the functions of a condenser - CORRECT
ANSWERS De-superheat, Condenses, Subcools
Refrigerant R 134a vapor enters the condenser at 124 psi G, 100°F. it leaves as a liquid from the
condenser subcooled 20°F and the pressure will be approximately - CORRECT ANSWERS 87
psig
There are three basic types of condensers, air-cooled, water-cooled and the _____________
cooled - CORRECT ANSWERS Evaporative
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 ANSWERS 100°F
The heat removed from the refrigerant by the condenser is - CORRECT ANSWERS Both sensible
and latent heat.
An energy recovery ventilator is - CORRECT ANSWERS an air to air heat exchanger to recover
heat
When testing the efficiency of an air-cooled condenser, the refrigerant condensing temperature
should be approximately ________ higher than the entering air temperature - CORRECT
ANSWERS 30°F
When testing the efficiency of a water-cooled condenser, the refrigerant condensing
temperature should be approximately _________ higher than the leaving water temperature -
CORRECT ANSWERS 10°F
COMPLETE SOLUTION THAT COVERS 2024/2025 ALL ANSWERS
100% CORRECT DETAILED BEST RATED TO SCORE A+ FOR PASS
The sequential order of steps in the vapor compressions process are - CORRECT ANSWERS
Compression, Condensation, Expansion, Vaporization
If a 30 pound cylinder of reclaimed R 410 a refrigerant has been stored overnight at 70° the
pressure in the cylinder should be approximately - CORRECT ANSWERS 201 psig
Fan airflow pressures are usually measured in - CORRECT ANSWERS Inches of water column
0 pounds per square inch absolute is - CORRECT ANSWERS A pressure which cannot be further
reduced
0 pounds per square inch gauge is - CORRECT ANSWERS The same as atmospheric pressure
The temperature at which moisture will start to condense from the air is called - CORRECT
ANSWERS Dew point temperature
A compound pressure gauge measures - CORRECT ANSWERS Pressure and vacuum
Mechanical shaft seal is necessary on a - CORRECT ANSWERS Open drive compressor
Liquid slugging is - CORRECT ANSWERS Liquid refrigerant in the compressor clearance space
The clearance space in reciprocating compressor - CORRECT ANSWERS Has an effect on
compressor capacity
Which of the following types of air conditioning compressor is most energy-efficient - CORRECT
ANSWERS Scroll
, ESCO AIR CONDITIONING EXAM QUESTIONS AND ANSWERS A
COMPLETE SOLUTION THAT COVERS 2024/2025 ALL ANSWERS
100% CORRECT DETAILED BEST RATED TO SCORE A+ FOR PASS
Which of the following represent the right order for the functions of a condenser - CORRECT
ANSWERS De-superheat, Condenses, Subcools
Refrigerant R 134a vapor enters the condenser at 124 psi G, 100°F. it leaves as a liquid from the
condenser subcooled 20°F and the pressure will be approximately - CORRECT ANSWERS 87
psig
There are three basic types of condensers, air-cooled, water-cooled and the _____________
cooled - CORRECT ANSWERS Evaporative
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 ANSWERS 100°F
The heat removed from the refrigerant by the condenser is - CORRECT ANSWERS Both sensible
and latent heat.
An energy recovery ventilator is - CORRECT ANSWERS an air to air heat exchanger to recover
heat
When testing the efficiency of an air-cooled condenser, the refrigerant condensing temperature
should be approximately ________ higher than the entering air temperature - CORRECT
ANSWERS 30°F
When testing the efficiency of a water-cooled condenser, the refrigerant condensing
temperature should be approximately _________ higher than the leaving water temperature -
CORRECT ANSWERS 10°F
