Refrigeration Operating Engineer License Exam Practice Test
|| Most Recent Exam 2026--2027 Actual Complete Real Exam
Questions And Correct Answers (Verified Answers) Already
Graded A+ | Guaranteed Success!! | Newest Exam | Just
Released!!
The AXV metering valve maintains a ___ in the evaporator.
- ANSWER -
Specific
pressure
The ___ and the pressure difference determines the amount of
refrigerant that
flows through a capillary tube metering device. - ANSWER -
Length and inside
diameter
Switch that can provide low charge protection by shutting
down the system on
low pressure. - ANSWER -Low
pressure switch
Control that cycles the condenser fan to control head
pressure. - ANSWER -
Low ambient
control
,A permanent replacement for CFC-1 is ___ in reciprocating
compressors. -
ANSWER -HFC-
123a
A temporary replacement for CFC-12 is ___ in reciprocating
compressors. -
ANSWER -
HCFC-22
Disposable refrigeration containers are referred to as ___. -
ANSWER -DOT-39
containers
Reusable refrigeration containers are referred to as ___. -
ANSWER -DOT-49
containers
The maximum compression ratio in a recrprocating
compressor is ___. -
ANSWER -
12:1
The only source of CFC's after ___ is from recovery and
recycling. - ANSWER -
January 1,
1996
, When you see foaming of the oil in the crankcase of a
compressor that is an
indication of ___ in the oil. - ANSWER -Liquid
refrigerant
Installed on a compressor to evaporate the refrigerant of the
oil. - ANSWER -
Crankcase
heater
Two mixtures of refrigerants and absorbers used in absorption
systems are ___
and water, and ammonia and water. - ANSWER -
Lithium bromide
The approach temperature for a water-cooled condenser is ___.
- ANSWER -10
degrees
F
Two mediums used for ___ the refrigerant are air and water.
- ANSWER -
Condensing
A condenser water regulator works off of the ___. - ANSWER
-Compressor
head
pressure
|| Most Recent Exam 2026--2027 Actual Complete Real Exam
Questions And Correct Answers (Verified Answers) Already
Graded A+ | Guaranteed Success!! | Newest Exam | Just
Released!!
The AXV metering valve maintains a ___ in the evaporator.
- ANSWER -
Specific
pressure
The ___ and the pressure difference determines the amount of
refrigerant that
flows through a capillary tube metering device. - ANSWER -
Length and inside
diameter
Switch that can provide low charge protection by shutting
down the system on
low pressure. - ANSWER -Low
pressure switch
Control that cycles the condenser fan to control head
pressure. - ANSWER -
Low ambient
control
,A permanent replacement for CFC-1 is ___ in reciprocating
compressors. -
ANSWER -HFC-
123a
A temporary replacement for CFC-12 is ___ in reciprocating
compressors. -
ANSWER -
HCFC-22
Disposable refrigeration containers are referred to as ___. -
ANSWER -DOT-39
containers
Reusable refrigeration containers are referred to as ___. -
ANSWER -DOT-49
containers
The maximum compression ratio in a recrprocating
compressor is ___. -
ANSWER -
12:1
The only source of CFC's after ___ is from recovery and
recycling. - ANSWER -
January 1,
1996
, When you see foaming of the oil in the crankcase of a
compressor that is an
indication of ___ in the oil. - ANSWER -Liquid
refrigerant
Installed on a compressor to evaporate the refrigerant of the
oil. - ANSWER -
Crankcase
heater
Two mixtures of refrigerants and absorbers used in absorption
systems are ___
and water, and ammonia and water. - ANSWER -
Lithium bromide
The approach temperature for a water-cooled condenser is ___.
- ANSWER -10
degrees
F
Two mediums used for ___ the refrigerant are air and water.
- ANSWER -
Condensing
A condenser water regulator works off of the ___. - ANSWER
-Compressor
head
pressure
