FDNY Z51 RMO LATEST EXAMS SCRIPT QUESTIONS
AND ANSWERS RATED A+
✔✔The cooling medium for a cooling tower is - ✔✔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 - ✔✔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 - ✔✔41ﾟ (1.8 × 5)+ 32 equals)
✔✔How do you start a centrifugal chiller - ✔✔Start the chilled water pump then start the
condenser water pump check oil start cooling tower start compressor
✔✔A circuit breaker has a similar function as what - ✔✔A fuse
✔✔A standpipe system will be out of service for 2 days how long should there be fire
watch - ✔✔The entire time the standpipe is out of service
✔✔In a building with a multi zone How does each zone get supplied with water -
✔✔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 - ✔✔3 way valve
✔✔How many BTU's are removed in a 30 ton system - ✔✔360000 BTU's per hour
✔✔An automatic expansion valve maintains a constant - ✔✔Evaporator pressure
, ✔✔If the air lovers below the fans in an induced draft cooling tower become clogged the
result would be - ✔✔Higher return water temperature
✔✔You have a cold front and there is a sudden drop in temperature the thermostat will
cause the solenoid valve - ✔✔Close and pump the compress it down and shut down on
low pressure
✔✔What happens when a steam turbine reaches critical speed - ✔✔Turbine will vibrate
violently
✔✔What Device automatically controls the speed of a steam turbine - ✔✔Governor
valve
✔✔Under what circumstances is it OK to chain and exit - ✔✔It is never OK
✔✔The heat remove from the refrigerator in the condenser is - ✔✔Sensible and latent
heat
✔✔There a fridge or in unit that you have been assigned to is being taken out of service
for major repair you have been assigned to withdraw a refrigerant for storage and
suitable containers according to New York City fire code you must ensure the
containers - ✔✔Are approved by the US Department of Transportation
✔✔Which of the following best describes house cylinder unloaders work - ✔✔Keep in
the suction valve opened wall compressor is in the return stroke
✔✔In most semi hermetic compressors the suction valve is used to - ✔✔Cool the motor
✔✔The amount of refrigerant that flows through the orifices of an economizer is
Determined by the - ✔✔Difference between the high side in low side pressure
✔✔The installation of an inline refrigerate cleaning system is Adviseable - ✔✔To
remove impurities from the system
✔✔The type of refrigerant system that is least likely to leak refrigerant into the building
space that a being cooled are - ✔✔An indirect system
✔✔A superheated vapor is - ✔✔Dry vapor above the saturation temperature
✔✔A Centrifugal water pump is known as a lift pump when the - ✔✔The water supply to
the pump suction inlet is below the pump level
AND ANSWERS RATED A+
✔✔The cooling medium for a cooling tower is - ✔✔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 - ✔✔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 - ✔✔41ﾟ (1.8 × 5)+ 32 equals)
✔✔How do you start a centrifugal chiller - ✔✔Start the chilled water pump then start the
condenser water pump check oil start cooling tower start compressor
✔✔A circuit breaker has a similar function as what - ✔✔A fuse
✔✔A standpipe system will be out of service for 2 days how long should there be fire
watch - ✔✔The entire time the standpipe is out of service
✔✔In a building with a multi zone How does each zone get supplied with water -
✔✔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 - ✔✔3 way valve
✔✔How many BTU's are removed in a 30 ton system - ✔✔360000 BTU's per hour
✔✔An automatic expansion valve maintains a constant - ✔✔Evaporator pressure
, ✔✔If the air lovers below the fans in an induced draft cooling tower become clogged the
result would be - ✔✔Higher return water temperature
✔✔You have a cold front and there is a sudden drop in temperature the thermostat will
cause the solenoid valve - ✔✔Close and pump the compress it down and shut down on
low pressure
✔✔What happens when a steam turbine reaches critical speed - ✔✔Turbine will vibrate
violently
✔✔What Device automatically controls the speed of a steam turbine - ✔✔Governor
valve
✔✔Under what circumstances is it OK to chain and exit - ✔✔It is never OK
✔✔The heat remove from the refrigerator in the condenser is - ✔✔Sensible and latent
heat
✔✔There a fridge or in unit that you have been assigned to is being taken out of service
for major repair you have been assigned to withdraw a refrigerant for storage and
suitable containers according to New York City fire code you must ensure the
containers - ✔✔Are approved by the US Department of Transportation
✔✔Which of the following best describes house cylinder unloaders work - ✔✔Keep in
the suction valve opened wall compressor is in the return stroke
✔✔In most semi hermetic compressors the suction valve is used to - ✔✔Cool the motor
✔✔The amount of refrigerant that flows through the orifices of an economizer is
Determined by the - ✔✔Difference between the high side in low side pressure
✔✔The installation of an inline refrigerate cleaning system is Adviseable - ✔✔To
remove impurities from the system
✔✔The type of refrigerant system that is least likely to leak refrigerant into the building
space that a being cooled are - ✔✔An indirect system
✔✔A superheated vapor is - ✔✔Dry vapor above the saturation temperature
✔✔A Centrifugal water pump is known as a lift pump when the - ✔✔The water supply to
the pump suction inlet is below the pump level
