1/27/25, 8:21 PM Z51 REFRIGERATION TEST NEWEST TEST | ALL QUESTIONS AND CORRECT ANSWERS | GRADED A+ | VERIFIED ANSWE…
Z51 REFRIGERATION TEST NEWEST TEST | ALL
QUESTIONS AND CORRECT ANSWERS | GRADED
A+ | VERIFIED ANSWERS | STUDY THIS ONE!
Save
Terms in this set (247)
Efficiency of the Lowering the condensing pressure
refrigerant cycle is
affected by the operations
of the condenser. Of the
following, a more efficient
centrifugal compressor
operation results from:
The heat removed from Sensible and latent heat
the refrigerant in a
condenser is:
The refrigerant unit that Are approved by the US Dept. of Transportation
you have been assigned
to is being taken out of
service for a major repair.
You have been assigned
to withdraw refrigerant for
storage in suitable
containers. According to
the NYC Fire Code, you
must ensure that the
containers:
https://quizlet.com/997919987/z51-refrigeration-test-newest-test-all-questions-and-correct-answers-graded-a-verified-answers-study-this-one-flash-ca… 1/19
,1/27/25, 8:21 PM Z51 REFRIGERATION TEST NEWEST TEST | ALL QUESTIONS AND CORRECT ANSWERS | GRADED A+ | VERIFIED ANSWE…
Which of the following Keep in the suction valve opened while the
best describes how the compressor is in the return stroke
cylinder unloader works?
In most semi-hermetic Cool the motor
compressors, the suction
vapor is used to:
The amount of refrigerant Differences between the high side and low side
that flows through the pressure
orifices of an economizer
is determined by the:
The installation of an inline To remove impurities from the system
refrigerant cleaning
system is advisable:
The type of refrigerant Indirect system
system that is least likely
to leak refrigerant into the
building space that are
being cooled:
The suction pressure of a 1.69
reciprocating compressor
is 65 PSIG. The discharge
pressure of this
compressor is 120 PSIG.
The atmospheric is 14.7
PSI. The compression ratio
for the given condition is
closest to:
A superheated vapor is: Dry vapor above the saturation temperature
A refrigerant engineer A faulty cooling tower water level controller
verifies that a condenser
water pump is cavitating.
Of the following, the most
likely cause for this
condition is:
https://quizlet.com/997919987/z51-refrigeration-test-newest-test-all-questions-and-correct-answers-graded-a-verified-answers-study-this-one-flash-ca… 2/19
, 1/27/25, 8:21 PM Z51 REFRIGERATION TEST NEWEST TEST | ALL QUESTIONS AND CORRECT ANSWERS | GRADED A+ | VERIFIED ANSWE…
A centrifugal water pump The water supply to the pump suction inlet is below
is known as a lift pump the pump level
when the:
A TXV is used to maintain Evaporator superheat
constant:
The chilled water supply Yes, this temp is too high for human comfort purposes
to the building is 55 deg F.
If the chiller is being used
for human comfort, should
you be concerned about
this, and why?
The packing gland of a The drip part of the packing gland gives evidence that
centrifugal pump serves there is water in the pump
to:
Capacity control of Operation of the hot gas bypass valve
reciprocating hermetic
compressor is typically
achieved through:
The most important A pure liquid refrigerant will enter the metering
reason to sub-cool the device
refrigerant in the
condenser is to ensure
that:
A refrigeration engineer is An expansion valve that is open too wide
logging readings from a
reciprocating system.
Compressor discharge
temperature have
dropped significantly and
the suction line pressure is
high. Which of the
following that may be
causing this set of
condition?
https://quizlet.com/997919987/z51-refrigeration-test-newest-test-all-questions-and-correct-answers-graded-a-verified-answers-study-this-one-flash-ca… 3/19
Z51 REFRIGERATION TEST NEWEST TEST | ALL
QUESTIONS AND CORRECT ANSWERS | GRADED
A+ | VERIFIED ANSWERS | STUDY THIS ONE!
Save
Terms in this set (247)
Efficiency of the Lowering the condensing pressure
refrigerant cycle is
affected by the operations
of the condenser. Of the
following, a more efficient
centrifugal compressor
operation results from:
The heat removed from Sensible and latent heat
the refrigerant in a
condenser is:
The refrigerant unit that Are approved by the US Dept. of Transportation
you have been assigned
to is being taken out of
service for a major repair.
You have been assigned
to withdraw refrigerant for
storage in suitable
containers. According to
the NYC Fire Code, you
must ensure that the
containers:
https://quizlet.com/997919987/z51-refrigeration-test-newest-test-all-questions-and-correct-answers-graded-a-verified-answers-study-this-one-flash-ca… 1/19
,1/27/25, 8:21 PM Z51 REFRIGERATION TEST NEWEST TEST | ALL QUESTIONS AND CORRECT ANSWERS | GRADED A+ | VERIFIED ANSWE…
Which of the following Keep in the suction valve opened while the
best describes how the compressor is in the return stroke
cylinder unloader works?
In most semi-hermetic Cool the motor
compressors, the suction
vapor is used to:
The amount of refrigerant Differences between the high side and low side
that flows through the pressure
orifices of an economizer
is determined by the:
The installation of an inline To remove impurities from the system
refrigerant cleaning
system is advisable:
The type of refrigerant Indirect system
system that is least likely
to leak refrigerant into the
building space that are
being cooled:
The suction pressure of a 1.69
reciprocating compressor
is 65 PSIG. The discharge
pressure of this
compressor is 120 PSIG.
The atmospheric is 14.7
PSI. The compression ratio
for the given condition is
closest to:
A superheated vapor is: Dry vapor above the saturation temperature
A refrigerant engineer A faulty cooling tower water level controller
verifies that a condenser
water pump is cavitating.
Of the following, the most
likely cause for this
condition is:
https://quizlet.com/997919987/z51-refrigeration-test-newest-test-all-questions-and-correct-answers-graded-a-verified-answers-study-this-one-flash-ca… 2/19
, 1/27/25, 8:21 PM Z51 REFRIGERATION TEST NEWEST TEST | ALL QUESTIONS AND CORRECT ANSWERS | GRADED A+ | VERIFIED ANSWE…
A centrifugal water pump The water supply to the pump suction inlet is below
is known as a lift pump the pump level
when the:
A TXV is used to maintain Evaporator superheat
constant:
The chilled water supply Yes, this temp is too high for human comfort purposes
to the building is 55 deg F.
If the chiller is being used
for human comfort, should
you be concerned about
this, and why?
The packing gland of a The drip part of the packing gland gives evidence that
centrifugal pump serves there is water in the pump
to:
Capacity control of Operation of the hot gas bypass valve
reciprocating hermetic
compressor is typically
achieved through:
The most important A pure liquid refrigerant will enter the metering
reason to sub-cool the device
refrigerant in the
condenser is to ensure
that:
A refrigeration engineer is An expansion valve that is open too wide
logging readings from a
reciprocating system.
Compressor discharge
temperature have
dropped significantly and
the suction line pressure is
high. Which of the
following that may be
causing this set of
condition?
https://quizlet.com/997919987/z51-refrigeration-test-newest-test-all-questions-and-correct-answers-graded-a-verified-answers-study-this-one-flash-ca… 3/19
