FDNY Z51/ Z-51 REFRIGERATION EXAM (2026)
comprehensive questions and verified answers (
detailed & elaborated) ACTUAL EXAM 2026 TEST!!
Play your way to mastery with fun games
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Terms in this set (247)
Efficiency of the refrigerant cycle is Lowering the condensing pressure
affected by the operations of the
condenser. Of the following, a more
efficient centrifugal compressor
operation results from:
The heat removed from the Sensible and latent heat
refrigerant in a condenser is:
, The refrigerant unit that you have Are approved by the US Dept. of Transportation
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:
Which of the following best describes Keep in the suction valve opened while the
how the cylinder unloader works? compressor is in the return stroke
In most semi-hermetic compressors, Cool the motor
the suction vapor is used to:
The amount of refrigerant that flows Differences between the high side and low side
through the orifices of an economizer pressure
is determined by the:
The installation of an inline refrigerant To remove impurities from the system
cleaning system is advisable:
The type of refrigerant system that is Indirect system
least likely to leak refrigerant into the
building space that are being cooled:
comprehensive questions and verified answers (
detailed & elaborated) ACTUAL EXAM 2026 TEST!!
Play your way to mastery with fun games
Match Blocks Charms NEW
Terms in this set (247)
Efficiency of the refrigerant cycle is Lowering the condensing pressure
affected by the operations of the
condenser. Of the following, a more
efficient centrifugal compressor
operation results from:
The heat removed from the Sensible and latent heat
refrigerant in a condenser is:
, The refrigerant unit that you have Are approved by the US Dept. of Transportation
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:
Which of the following best describes Keep in the suction valve opened while the
how the cylinder unloader works? compressor is in the return stroke
In most semi-hermetic compressors, Cool the motor
the suction vapor is used to:
The amount of refrigerant that flows Differences between the high side and low side
through the orifices of an economizer pressure
is determined by the:
The installation of an inline refrigerant To remove impurities from the system
cleaning system is advisable:
The type of refrigerant system that is Indirect system
least likely to leak refrigerant into the
building space that are being cooled:
