P-99 LOW PRESSURE BOILER COF FDNY
EXAM 2025/2026 WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED DETAILED
ANSWERS |FREQUENTLY TESTED
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST|BRAND NEW VERSION
!!|GUARANTEED PASS
A leaking ____ on the oil pump shaft bearing may also cause oil leak on the ____ in front of the
heating unit.
Seal, floor
Dirty or damaged nozzles or rotary cups can cause improper _____. This will lead to a ____
deposit in the combustion chamber.
Atomization, carbon
Nozzles in the no. 6 oil burner should be cleaned at least ____ a ____.
Once a day
Blockage in the chimney or flue passage will cause the cellar or boiler room to become filled
with ____.
Smoke
Water in the fuel oil or the wrong grade will cause improper _____.
Atomization
A delay in ignition is the most common cause for burner ____ ____. This can cause the boiler
door to _____ _____.
Puff back, blow open
When the oil burner goes into operation and the chamber is not ____ and the source of ____
fails, the fumes can build up in the _____ and cause a ____ _____.
1|Page
, Heated, ignition, chimney, puff back
If proper ignition has not occurred the only indication of flame failure may be a strong ____ of
fuel oil.
Odor
Vaporized oil looks like ______ steam. This condition should be handled by shuting off the ____.
The area must be ____. Any possible source of ignition must be _____.
Condensed, burner, vented, eliminated
Regular _____ ______ reduces the need for corrective maintenance and contributes to the
prevention of fire.
Preventive
The ____ ____ ____ permits the operator to stop the flow of oil to clean the ____.
Tank shut off, strainer
The _____ _____ separates dirt from the fuel oil.
Oil strainer
The ____ ____ separates dirt from the fuel oil. The ____ ____ tells if there is an obstruction in
the suction line.
Oil strainer, vacuum gauge
The ____ _____ valve is electrically operated and will open and close the line leading to the
atomizer of the oil burner.
Main fuel
The ____ ____ is a device that breaks up the oil for combustion.
Spinner, atomizer
The _____ will shut down an oil burner if there is no air for combustion.
Vaporstat
The ______ _____ is a flame detection control. It is a device that will shut down the boiler if a
_____ is not visible.
Photoelectric cell, flame
The _____ operates the boiler in the summer for domestic hot water needs.
2|Page
EXAM 2025/2026 WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED DETAILED
ANSWERS |FREQUENTLY TESTED
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST|BRAND NEW VERSION
!!|GUARANTEED PASS
A leaking ____ on the oil pump shaft bearing may also cause oil leak on the ____ in front of the
heating unit.
Seal, floor
Dirty or damaged nozzles or rotary cups can cause improper _____. This will lead to a ____
deposit in the combustion chamber.
Atomization, carbon
Nozzles in the no. 6 oil burner should be cleaned at least ____ a ____.
Once a day
Blockage in the chimney or flue passage will cause the cellar or boiler room to become filled
with ____.
Smoke
Water in the fuel oil or the wrong grade will cause improper _____.
Atomization
A delay in ignition is the most common cause for burner ____ ____. This can cause the boiler
door to _____ _____.
Puff back, blow open
When the oil burner goes into operation and the chamber is not ____ and the source of ____
fails, the fumes can build up in the _____ and cause a ____ _____.
1|Page
, Heated, ignition, chimney, puff back
If proper ignition has not occurred the only indication of flame failure may be a strong ____ of
fuel oil.
Odor
Vaporized oil looks like ______ steam. This condition should be handled by shuting off the ____.
The area must be ____. Any possible source of ignition must be _____.
Condensed, burner, vented, eliminated
Regular _____ ______ reduces the need for corrective maintenance and contributes to the
prevention of fire.
Preventive
The ____ ____ ____ permits the operator to stop the flow of oil to clean the ____.
Tank shut off, strainer
The _____ _____ separates dirt from the fuel oil.
Oil strainer
The ____ ____ separates dirt from the fuel oil. The ____ ____ tells if there is an obstruction in
the suction line.
Oil strainer, vacuum gauge
The ____ _____ valve is electrically operated and will open and close the line leading to the
atomizer of the oil burner.
Main fuel
The ____ ____ is a device that breaks up the oil for combustion.
Spinner, atomizer
The _____ will shut down an oil burner if there is no air for combustion.
Vaporstat
The ______ _____ is a flame detection control. It is a device that will shut down the boiler if a
_____ is not visible.
Photoelectric cell, flame
The _____ operates the boiler in the summer for domestic hot water needs.
2|Page
