fdny z51 rmo NEWEST 2024 WITH COMPLETE QUESTIONS AND CORRECT
VERIFIED ANSWERS (DETAILED ANSWERS) ALREADY GRADED A+ 100%
GUARANTEED TO PASS CONCEPTS!!!
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 - ✔✔ANSW✔✔..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 - ✔✔ANSW✔✔..41ﾟ (1.8 × 5)+ 32 equals)
How do you start a centrifugal chiller - ✔✔ANSW✔✔..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 - ✔✔ANSW✔✔..A fuse
A standpipe system will be out of service for 2 days how long should there be fire watch
- ✔✔ANSW✔✔..The entire time the standpipe is out of service
In a building with a multi zone How does each zone get supplied with water -
✔✔ANSW✔✔..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 - ✔✔ANSW✔✔..3 way valve
How many BTU's are removed in a 30 ton system - ✔✔ANSW✔✔..360000 BTU's per
hour
An automatic expansion valve maintains a constant - ✔✔ANSW✔✔..Evaporator
pressure
If the air lovers below the fans in an induced draft cooling tower become clogged the
result would be - ✔✔ANSW✔✔..Higher return water temperature
, You have a cold front and there is a sudden drop in temperature the thermostat will
cause the solenoid valve - ✔✔ANSW✔✔..Close and pump the compress it down and
shut down on low pressure
What happens when a steam turbine reaches critical speed - ✔✔ANSW✔✔..Turbine will
vibrate violently
What Device automatically controls the speed of a steam turbine -
✔✔ANSW✔✔..Governor valve
Under what circumstances is it OK to chain and exit - ✔✔ANSW✔✔..It is never OK
The heat remove from the refrigerator in the condenser is - ✔✔ANSW✔✔..Sensible and
latent heat
the efficiency of the refrigerant cycle is affected by the operation of the condenser. Of
the following, a more efficient centrifugal compressor operation results from -
✔✔ANSW✔✔..lowering the condenser pressure
In most semi hermetic compressors, the suction vapor is used for - ✔✔ANSW✔✔..cools
the motor
The amount of refrigerant that flows through the orifices of an economizer is determined
by the - ✔✔ANSW✔✔..difference between the high side and the low side pressure
the instalation of an inline refrigerant cleaning system is advisable - ✔✔ANSW✔✔..to
remove impurities from the system
a refrigerant engineer verifies that a condenser pump is cavitation of the following the
most likely cause for this condition is: - ✔✔ANSW✔✔..a faulty cooling tower water level
controller
when an expansion valve is operating properly, at the end of the evaporator will contain
- ✔✔ANSW✔✔..only superheated vapor
a centrifugal water pump is considered to be fully primed when - ✔✔ANSW✔✔..the
pump is full of liquid
A refrigeration compressor has failed to turn on. the 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: - ✔✔ANSW✔✔..temperature and pressure controls
VERIFIED ANSWERS (DETAILED ANSWERS) ALREADY GRADED A+ 100%
GUARANTEED TO PASS CONCEPTS!!!
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 - ✔✔ANSW✔✔..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 - ✔✔ANSW✔✔..41ﾟ (1.8 × 5)+ 32 equals)
How do you start a centrifugal chiller - ✔✔ANSW✔✔..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 - ✔✔ANSW✔✔..A fuse
A standpipe system will be out of service for 2 days how long should there be fire watch
- ✔✔ANSW✔✔..The entire time the standpipe is out of service
In a building with a multi zone How does each zone get supplied with water -
✔✔ANSW✔✔..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 - ✔✔ANSW✔✔..3 way valve
How many BTU's are removed in a 30 ton system - ✔✔ANSW✔✔..360000 BTU's per
hour
An automatic expansion valve maintains a constant - ✔✔ANSW✔✔..Evaporator
pressure
If the air lovers below the fans in an induced draft cooling tower become clogged the
result would be - ✔✔ANSW✔✔..Higher return water temperature
, You have a cold front and there is a sudden drop in temperature the thermostat will
cause the solenoid valve - ✔✔ANSW✔✔..Close and pump the compress it down and
shut down on low pressure
What happens when a steam turbine reaches critical speed - ✔✔ANSW✔✔..Turbine will
vibrate violently
What Device automatically controls the speed of a steam turbine -
✔✔ANSW✔✔..Governor valve
Under what circumstances is it OK to chain and exit - ✔✔ANSW✔✔..It is never OK
The heat remove from the refrigerator in the condenser is - ✔✔ANSW✔✔..Sensible and
latent heat
the efficiency of the refrigerant cycle is affected by the operation of the condenser. Of
the following, a more efficient centrifugal compressor operation results from -
✔✔ANSW✔✔..lowering the condenser pressure
In most semi hermetic compressors, the suction vapor is used for - ✔✔ANSW✔✔..cools
the motor
The amount of refrigerant that flows through the orifices of an economizer is determined
by the - ✔✔ANSW✔✔..difference between the high side and the low side pressure
the instalation of an inline refrigerant cleaning system is advisable - ✔✔ANSW✔✔..to
remove impurities from the system
a refrigerant engineer verifies that a condenser pump is cavitation of the following the
most likely cause for this condition is: - ✔✔ANSW✔✔..a faulty cooling tower water level
controller
when an expansion valve is operating properly, at the end of the evaporator will contain
- ✔✔ANSW✔✔..only superheated vapor
a centrifugal water pump is considered to be fully primed when - ✔✔ANSW✔✔..the
pump is full of liquid
A refrigeration compressor has failed to turn on. the 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: - ✔✔ANSW✔✔..temperature and pressure controls
