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Q-01 FDNY Exam Newest 2026-2027/Q-01 FDNY Exam
Preparation/Q-01 FDNY Practice Exam With Complete
Questions And Correct Detailed Answers (Verified Answers)
|Already Graded A+|Brand New Version!!
A dryer is generally installed with other equipment in a commercial
Freon compressor system. The recommended location of this dryer is on
the
A) high-pressure line between condenser and reciever
B) suction line between evaporator and compressor
C) discharge line between compressor and condenser
D) liquid line between receiver and expansion valve - ANSWER-D)
liquid line between receiver and expansion valve
R-22 —What does it smell like? - ANSWER-Odorless
Desirable characteristics of a refrigerant:
A) High __________
B) Low __________ - ANSWER-A) High critical point
B) Low freezing point
Centrifugal Feed Water Pump
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A) Start-up procedure
B) Shut-down procedure - ANSWER-A) Start-up procedure
1) Lock-out, tag-out
2) Close discharge valve
3) Open suction valve
4) Turn on
5) Open discharge valve
B) Shut-down procedure
1) Lock-out, tag-out
2) close suction valve
3) close discharge valve
In order to vary the capacity of an absorption plant, you should regulate
the.. - ANSWER-Flow of the water to the condenser
600,000 btu per hour equals how many tons of refrigeration?
A) 300
B) 3,000
C) 500
D) 50 - ANSWER-D) 50
Heat transfer takes place by
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A) evaporation, conduction and condensation
B) radiation, conduction and convection
C) condensation, evaporation and radiation
D) sublimation, evaporation and convection - ANSWER-B) radiation,
conduction and convection
Refrigerant recovery is defined as
A) Removing the refrigerant from a system and storing it in an external
container, with the lowest emissions possible.
B) Reprocessing a refrigerant into a new product that can be reused in
another system.
C) The process of cleaning a refrigerant of dirt and contaminates, such
as oil, acid, foreign material and non condensibles.
D) None of the above. - ANSWER-A) Removing the refrigerant from a
system and storing it in an external container, with the lowest emissions
possible.
A 10-ton refrigeration unit has a capacity of
A) 2,000 btu/minute
B) 12,000 btu/minute
C) 20,000 btu/minute
D) 144,000 btu/day - ANSWER-A) 2,000 btu/minute
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In an absorption system, the medium normally used to vaporize
refrigerant and increase its temperature is
A) water
B) propane
C) ethylene
D) steam - ANSWER-D) steam
Any water present in the refrigerant side of a Freon refrigerating system
causes a
A) clogged oil trap
B) frozen discharge valve
C) clogged scale trap
D) frozen expansion valve - ANSWER-D) frozen expansion valve
The subcooling effect of the liquid refrigerant just before the expansion
valve causes increased
A) horsepower
B) refrigeration effect
C) expansion valve capacity
D) refrigerant flow - ANSWER-B) refrigeration effect
In a flooded evaporator using an accumulator and float valve, flash gas
A) passes directly into the evaporator
Q-01 FDNY Exam Newest 2026-2027/Q-01 FDNY Exam
Preparation/Q-01 FDNY Practice Exam With Complete
Questions And Correct Detailed Answers (Verified Answers)
|Already Graded A+|Brand New Version!!
A dryer is generally installed with other equipment in a commercial
Freon compressor system. The recommended location of this dryer is on
the
A) high-pressure line between condenser and reciever
B) suction line between evaporator and compressor
C) discharge line between compressor and condenser
D) liquid line between receiver and expansion valve - ANSWER-D)
liquid line between receiver and expansion valve
R-22 —What does it smell like? - ANSWER-Odorless
Desirable characteristics of a refrigerant:
A) High __________
B) Low __________ - ANSWER-A) High critical point
B) Low freezing point
Centrifugal Feed Water Pump
,2|Page
A) Start-up procedure
B) Shut-down procedure - ANSWER-A) Start-up procedure
1) Lock-out, tag-out
2) Close discharge valve
3) Open suction valve
4) Turn on
5) Open discharge valve
B) Shut-down procedure
1) Lock-out, tag-out
2) close suction valve
3) close discharge valve
In order to vary the capacity of an absorption plant, you should regulate
the.. - ANSWER-Flow of the water to the condenser
600,000 btu per hour equals how many tons of refrigeration?
A) 300
B) 3,000
C) 500
D) 50 - ANSWER-D) 50
Heat transfer takes place by
,3|Page
A) evaporation, conduction and condensation
B) radiation, conduction and convection
C) condensation, evaporation and radiation
D) sublimation, evaporation and convection - ANSWER-B) radiation,
conduction and convection
Refrigerant recovery is defined as
A) Removing the refrigerant from a system and storing it in an external
container, with the lowest emissions possible.
B) Reprocessing a refrigerant into a new product that can be reused in
another system.
C) The process of cleaning a refrigerant of dirt and contaminates, such
as oil, acid, foreign material and non condensibles.
D) None of the above. - ANSWER-A) Removing the refrigerant from a
system and storing it in an external container, with the lowest emissions
possible.
A 10-ton refrigeration unit has a capacity of
A) 2,000 btu/minute
B) 12,000 btu/minute
C) 20,000 btu/minute
D) 144,000 btu/day - ANSWER-A) 2,000 btu/minute
, 4|Page
In an absorption system, the medium normally used to vaporize
refrigerant and increase its temperature is
A) water
B) propane
C) ethylene
D) steam - ANSWER-D) steam
Any water present in the refrigerant side of a Freon refrigerating system
causes a
A) clogged oil trap
B) frozen discharge valve
C) clogged scale trap
D) frozen expansion valve - ANSWER-D) frozen expansion valve
The subcooling effect of the liquid refrigerant just before the expansion
valve causes increased
A) horsepower
B) refrigeration effect
C) expansion valve capacity
D) refrigerant flow - ANSWER-B) refrigeration effect
In a flooded evaporator using an accumulator and float valve, flash gas
A) passes directly into the evaporator
