Q-01 FDNY Exam Newest /Q-01 FDNY Exam
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Complete Questions And Correct Detailed
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Rupture members, when used in parallel with a relief valve, are not to
exceed _____% above designed working pressure - answer-:20%
Butterfly valve: where can it be used? - answer-:Can be used on the inlet
and outlet of a water pump
What electrical motor protection device automatically resets itself? -
answer-:The thermal protector
746 watts equals how many kilowatt hours? - answer-:.746 kilowatt hours
What position is the liquid line service valve normally in? - answer-:Back-
seated
In an operating evaporator, oil stays on top of which refrigerant? -
answer-:Carbon dioxide, R-744
To determine the refrigerant type on air-conditioning equipment, the
technician must
,A) Read the equipment name plate
B) Read the expansion valve plate
C) Connect manifold gauges and compare the pressure
D) Pump down the system and take samples - answer-:A) Read the
equipment name plate
Chlorine-based refrigerants without hydrogen are so stable that they do not
break down in the lower atmosphere
A) Until 10 to 20 years after their release
B) Until 20 to 40 years after their release
C) Until 40 to 70 years after their release
D) Even after 100 years or more after being released - answer-:D) Even
after 100 years or more after being released
The scale trap is located between the
A) Compressor and condenser
B) Condenser and receiver
C) Receiver and evaporator
D) Compressor and evaporator - answer-:D) Compressor and evaporator
According to ASHRAE Standard R15 (Safety Code for Mechanical
Refrigeration), an Oxygen Deprivation Sensor can also be used as
A) An automatic purger
B) A breathing apparatus
C) A refrigeration leak detector
D) Mechanical ventilation - answer-:C) A refrigeration leak detector
,In a system containing 2,000 pounds of refrigerant, the mechanical air
discharge from the engine room should be
A) 2,500 cfm
B) 2,750 cfm
C) 2,900 cfm
D) 3,050 cfm - answer-:C) 2,900 cfm
In an automatically operated, flooded shell-and-tube cooler, an electric
float switch is used primarily to
A) Control the flow of brine into the tubes
B) Control the flow of refrigerant into the shell
C) Purge oil from the cooler
D) Purge noncondensable gas from the cooler - answer-:B) Control the
flow of refrigerant into the shell
A 10-ton refrigeration unit has a capacity of
A) 2,000 btu per minute
B) 12,000 btu per hour
C) 20,000 btu per minute
D) 144,000 btu per day - answer-:A) 2,000 btu per minute
A pressure or temperature response mechanism for automatically stopping
the operation of the pressure-imposing element is the
A) Pressure-limiting device
B) Pressure-relief valve
, C) Pressure-imposing device
D) Pressure-relief device - answer-:A) Pressure-limiting device
Any water present in the refrigeration side of a Freon refrigeration 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 minimum required rated discharge capacity of the pressure relief valve
device or fusible plug for a refrigerant-containing vessel is determined by
the following formula: C=Fd1. What is the "C" equal to?
A) Btu/minute
B) Refrigerant pressure
C) Air in pounds/minute
D) Cubic feet/minute - answer-:A) Cubic feet per minute
In a flooded evaporator using an accumulator and float valve, flash gas
A) Passes directly into the evaporator
B) Passes directly into the suction line
C) Does no occur
D) Stays in the receiver
E) A minimum of every 2 years - answer-:B) Passes directly into the
suction line
Preparation/Q-01 FDNY Practice Exam With
Complete Questions And Correct Detailed
Answers (Verified Answers) |Already Graded
A+|Brand New Version!!
Rupture members, when used in parallel with a relief valve, are not to
exceed _____% above designed working pressure - answer-:20%
Butterfly valve: where can it be used? - answer-:Can be used on the inlet
and outlet of a water pump
What electrical motor protection device automatically resets itself? -
answer-:The thermal protector
746 watts equals how many kilowatt hours? - answer-:.746 kilowatt hours
What position is the liquid line service valve normally in? - answer-:Back-
seated
In an operating evaporator, oil stays on top of which refrigerant? -
answer-:Carbon dioxide, R-744
To determine the refrigerant type on air-conditioning equipment, the
technician must
,A) Read the equipment name plate
B) Read the expansion valve plate
C) Connect manifold gauges and compare the pressure
D) Pump down the system and take samples - answer-:A) Read the
equipment name plate
Chlorine-based refrigerants without hydrogen are so stable that they do not
break down in the lower atmosphere
A) Until 10 to 20 years after their release
B) Until 20 to 40 years after their release
C) Until 40 to 70 years after their release
D) Even after 100 years or more after being released - answer-:D) Even
after 100 years or more after being released
The scale trap is located between the
A) Compressor and condenser
B) Condenser and receiver
C) Receiver and evaporator
D) Compressor and evaporator - answer-:D) Compressor and evaporator
According to ASHRAE Standard R15 (Safety Code for Mechanical
Refrigeration), an Oxygen Deprivation Sensor can also be used as
A) An automatic purger
B) A breathing apparatus
C) A refrigeration leak detector
D) Mechanical ventilation - answer-:C) A refrigeration leak detector
,In a system containing 2,000 pounds of refrigerant, the mechanical air
discharge from the engine room should be
A) 2,500 cfm
B) 2,750 cfm
C) 2,900 cfm
D) 3,050 cfm - answer-:C) 2,900 cfm
In an automatically operated, flooded shell-and-tube cooler, an electric
float switch is used primarily to
A) Control the flow of brine into the tubes
B) Control the flow of refrigerant into the shell
C) Purge oil from the cooler
D) Purge noncondensable gas from the cooler - answer-:B) Control the
flow of refrigerant into the shell
A 10-ton refrigeration unit has a capacity of
A) 2,000 btu per minute
B) 12,000 btu per hour
C) 20,000 btu per minute
D) 144,000 btu per day - answer-:A) 2,000 btu per minute
A pressure or temperature response mechanism for automatically stopping
the operation of the pressure-imposing element is the
A) Pressure-limiting device
B) Pressure-relief valve
, C) Pressure-imposing device
D) Pressure-relief device - answer-:A) Pressure-limiting device
Any water present in the refrigeration side of a Freon refrigeration 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 minimum required rated discharge capacity of the pressure relief valve
device or fusible plug for a refrigerant-containing vessel is determined by
the following formula: C=Fd1. What is the "C" equal to?
A) Btu/minute
B) Refrigerant pressure
C) Air in pounds/minute
D) Cubic feet/minute - answer-:A) Cubic feet per minute
In a flooded evaporator using an accumulator and float valve, flash gas
A) Passes directly into the evaporator
B) Passes directly into the suction line
C) Does no occur
D) Stays in the receiver
E) A minimum of every 2 years - answer-:B) Passes directly into the
suction line
