FDNY Z51 RMO Final
Exam
(2026–2027)
Exam Questions With Verified Correct
Solutions |100% Guaranteed Pass |
Latest Version | Grade A+
, A refrigeration compressor has failed to turn on. the temperature and pressure controls
engineer on duty verifies the electrical circuit to the
motor, including all switches and circuit breakers is
complete, according to recomended service practice,
the next item to be checked would likely be the:
Refrigerants are characterized by their physical ammonia
properties including Flashpoint, refrigeration effect and
others, of the refrigerants in commercial and industrial
the highest latent heat and refrigerant effect is:
which of the following ashrae refrigerant safety b3
classification is the most toxic
which of the following ashrae refrigerant safety a3
classification is the most flammable
in q indirect refrigeration system,of the following, the r 22 (cooling medium= glycol or any brine solution)
one that would not be used as a cooling medium for
building spaces being cooled is
the primary way of achieving capacity control of a an adjustment to the inlet impeller pre rotation vanes
centrifugal compressor is by:
regarding the functioning of a steam turbine, why is it keeps turbine blades wear to minimum
advisable to keep moisture in the inlet low as possible
a water chiller is equipped with a reciprocating high suction super heat
compressor, a thermostatic expansion valve and a an air
cooled condenser. A restriction in the refrigerant line
would result in
the process by which refrigerant is extracted and recycle
cleaned for reuse without requirements for reclamation
is called
the purpose of wear rings in a centrifugal pump is to prevent wearing of the pump housing and impeller
a centrifugal compressor is in operation with suction 1.39
pressure is 3 psig and the discharge is 10psi what is the
atmospheric pressure is 14.7 which is the ratio closest to
electrical current us measured in amperage
how would you put an additional pump online open suction valve, open discharge valve gradually
Exam
(2026–2027)
Exam Questions With Verified Correct
Solutions |100% Guaranteed Pass |
Latest Version | Grade A+
, A refrigeration compressor has failed to turn on. the temperature and pressure controls
engineer on duty verifies the electrical circuit to the
motor, including all switches and circuit breakers is
complete, according to recomended service practice,
the next item to be checked would likely be the:
Refrigerants are characterized by their physical ammonia
properties including Flashpoint, refrigeration effect and
others, of the refrigerants in commercial and industrial
the highest latent heat and refrigerant effect is:
which of the following ashrae refrigerant safety b3
classification is the most toxic
which of the following ashrae refrigerant safety a3
classification is the most flammable
in q indirect refrigeration system,of the following, the r 22 (cooling medium= glycol or any brine solution)
one that would not be used as a cooling medium for
building spaces being cooled is
the primary way of achieving capacity control of a an adjustment to the inlet impeller pre rotation vanes
centrifugal compressor is by:
regarding the functioning of a steam turbine, why is it keeps turbine blades wear to minimum
advisable to keep moisture in the inlet low as possible
a water chiller is equipped with a reciprocating high suction super heat
compressor, a thermostatic expansion valve and a an air
cooled condenser. A restriction in the refrigerant line
would result in
the process by which refrigerant is extracted and recycle
cleaned for reuse without requirements for reclamation
is called
the purpose of wear rings in a centrifugal pump is to prevent wearing of the pump housing and impeller
a centrifugal compressor is in operation with suction 1.39
pressure is 3 psig and the discharge is 10psi what is the
atmospheric pressure is 14.7 which is the ratio closest to
electrical current us measured in amperage
how would you put an additional pump online open suction valve, open discharge valve gradually
