ESCO Air Conditioning Exam Tested Questions With Revised Answers
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Course
ESCO
Institution
ESCO
ESCO Air Conditioning
Exam Tested Questions With
Revised Answers
There are three basic types of condensers, air-cooled, water
cooled and the _____________ cooled - ANSWER
Evaporative
10 pounds of refrigerant passing through a water cooled
condenser will lose 20 BTUs of heat per po...
ESCO Air Conditioning
Exam Tested Questions With
Revised Answers
The state of the refrigerant in the suction line should be -
ANSWER Low pressure / Low temperature vapor
The movement of heat by direct contact is - ANSWER
Conduction
The standard unit for measuring the quantity of heat in a
substance is - ANSWER BTUs
Refrigerant gives up heat when - ANSWER It condenses
The state of the refrigerant entering the condenser is -
ANSWER High pressure / Highly superheated vapor
The evaporator - ANSWER Transfers heat from the
refrigerated space to the refrigerant
, Which of the following is not a thermodynamic property of
refrigerants - ANSWER Flammability
The sequential order of steps in the vapor compressions
process are - ANSWER 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 - ANSWER 201 psig
Fan airflow pressures are usually measured in - ANSWER
Inches of water column
0 pounds per square inch absolute is - ANSWER A pressure
which cannot be further reduced
0 pounds per square inch gauge is - ANSWER The same as
atmospheric pressure
, The temperature at which moisture will start to condense from
the air is called - ANSWER Dew point temperature
A compound pressure gauge measures - ANSWER Pressure
and vacuum
Mechanical shaft seal is necessary on a - ANSWER Open
drive compressor
Liquid slugging is - ANSWER Liquid refrigerant in the
compressor clearance space
The clearance space in reciprocating compressor - ANSWER
Has an effect on compressor capacity
Which of the following types of air conditioning compressor is
most energy-efficient - ANSWER Scroll
Which of the following represent the right order for the
functions of a condenser - ANSWER De-superheat,
Condenses, Subcools
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