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FDNY Z51 RMO FINAL EXAM 2026-
CERTIFIED QUESTIONS WITH ANSWERS
You are performing hot work near a sprinkler head what can you do to prevent
the fire alarm system from going off - correct-answer -Put a non combustible
barrier to protect the sprinkler
What type of sprinkler heads need inspecting - correct-answer -Automatic
Filter driers remove - correct-answer -Moisture and particles
You are the engineer running a 2000 t steam driven Turbine centrifugal rug fridge
eration system supplying chilled water to a college campus with multiple buildings
you are supplying 46ﾟ chilled water all the buildings are satisfied except one
building what should you do - correct-answer -Put in additional chilled water
pump online
If 29.92 HG = 14.7 PSIA then 26" HG converts to what in PSIA - correct-answer -
12.77 (.491 is constant for HG)
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What is the device used to measure the speed of a turbine - correct-answer -
Tachometer
The charge in TEV sensing bulb is - correct-answer -Similar to the refrigerant in
this system
The cooling medium for a cooling tower is - correct-answer -Air
A technician has been asked to estimate the cost of operating a 5 horsepower
motor because the plant is billed by energy consumed as kilowatt hours the
technician will calculate the conversion the equivalent in energy of a 5 horse
power motor operating for 9 hours and kilowatt hours is closest to - correct-
answer -33.6 (one horsepower equals. 746)
The only refrigerant/temperature chart available to refrigerate engineer list the
temperature in ﾟC if the chart indicates a Celsius temperature of 5ﾟ the
equivalent In Fahrenheit is - correct-answer -41ﾟ (1.8 × 5)+ 32 equals)
How do you start a centrifugal chiller - correct-answer -Start the chilled water
pump then start the condenser water pump check oil start cooling tower start
compressor
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A circuit breaker has a similar function as what - correct-answer -A fuse
A standpipe system will be out of service for 2 days how long should there be fire
watch - correct-answer -The entire time the standpipe is out of service
In a building with a multi zone How does each zone get supplied with water -
correct-answer -Each zone will have its own automatic water supply
Which service valve should be Install to isolate dual pressure relief valve while
keeping the system in service - correct-answer -3 way valve
How many BTU's are removed in a 30 ton system - correct-answer -360000 BTU's
per hour
An automatic expansion valve maintains a constant - correct-answer -Evaporator
pressure
If the air lovers below the fans in an induced draft cooling tower become clogged
the result would be - correct-answer -Higher return water temperature
FDNY Z51 RMO FINAL EXAM 2026-
CERTIFIED QUESTIONS WITH ANSWERS
You are performing hot work near a sprinkler head what can you do to prevent
the fire alarm system from going off - correct-answer -Put a non combustible
barrier to protect the sprinkler
What type of sprinkler heads need inspecting - correct-answer -Automatic
Filter driers remove - correct-answer -Moisture and particles
You are the engineer running a 2000 t steam driven Turbine centrifugal rug fridge
eration system supplying chilled water to a college campus with multiple buildings
you are supplying 46ﾟ chilled water all the buildings are satisfied except one
building what should you do - correct-answer -Put in additional chilled water
pump online
If 29.92 HG = 14.7 PSIA then 26" HG converts to what in PSIA - correct-answer -
12.77 (.491 is constant for HG)
,2|Page
What is the device used to measure the speed of a turbine - correct-answer -
Tachometer
The charge in TEV sensing bulb is - correct-answer -Similar to the refrigerant in
this system
The cooling medium for a cooling tower is - correct-answer -Air
A technician has been asked to estimate the cost of operating a 5 horsepower
motor because the plant is billed by energy consumed as kilowatt hours the
technician will calculate the conversion the equivalent in energy of a 5 horse
power motor operating for 9 hours and kilowatt hours is closest to - correct-
answer -33.6 (one horsepower equals. 746)
The only refrigerant/temperature chart available to refrigerate engineer list the
temperature in ﾟC if the chart indicates a Celsius temperature of 5ﾟ the
equivalent In Fahrenheit is - correct-answer -41ﾟ (1.8 × 5)+ 32 equals)
How do you start a centrifugal chiller - correct-answer -Start the chilled water
pump then start the condenser water pump check oil start cooling tower start
compressor
, 3|Page
A circuit breaker has a similar function as what - correct-answer -A fuse
A standpipe system will be out of service for 2 days how long should there be fire
watch - correct-answer -The entire time the standpipe is out of service
In a building with a multi zone How does each zone get supplied with water -
correct-answer -Each zone will have its own automatic water supply
Which service valve should be Install to isolate dual pressure relief valve while
keeping the system in service - correct-answer -3 way valve
How many BTU's are removed in a 30 ton system - correct-answer -360000 BTU's
per hour
An automatic expansion valve maintains a constant - correct-answer -Evaporator
pressure
If the air lovers below the fans in an induced draft cooling tower become clogged
the result would be - correct-answer -Higher return water temperature
