11/18/24, 6:54 PM FDNY Z51 WRITTEN EXAM ACTUAL EXAM 2 VERSIONS (VERSION A AND B) COMPLETE 400 QUESTIONS WITH DETAILED…
FDNY Z51 WRITTEN EXAM ACTUAL EXAM 2
VERSIONS (VERSION A AND B) COMPLETE 400
QUESTIONS WITH DETAILED VERIFIED ANSWERS
/ ALREADY GRADED A+
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Terms in this set (222)
The efficiency of the Lowering the condensing pressure
refrigerant cycle is
affected by the operation
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:
,11/18/24, 6:54 PM FDNY Z51 WRITTEN EXAM ACTUAL EXAM 2 VERSIONS (VERSION A AND B) COMPLETE 400 QUESTIONS WITH DETAILED…
The refrigerant unit that Are approved by the US department 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 new York city fire
code, you must ensure
that the containers:
Which of the following Keep in the suction valve opened while the
best describes how the compressor is in the return stroke
cylinder unloader work?
In most semi hermetic Cool the motor
compressors, the suction
vapor is used to:
The amount of refrigerant Difference between the high side and load side
that flows through the pressure
orifices of a 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 The indirect system
system that is least likely
to leak refrigerant into the
building space that are
cooled
, 11/18/24, 6:54 PM FDNY Z51 WRITTEN EXAM ACTUAL EXAM 2 VERSIONS (VERSION A AND B) COMPLETE 400 QUESTIONS WITH DETAILED…
The suction pressure of a 1.69
reciprocating compressor
is 65PSIG. the discharge
pressure of this
compressor is 120PSIG.
the atmospheric is 14.7 PSI.
the compression ratio for
the given condition is
closet to:
A super heated vapor is a 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:
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 temperature is too high for human comfort
to the building is 55F. if purpose
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:
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