Fdny p-99 c of f Exam | QUESTIONS AND
CORRECT ANSWERS | LATEST VERSION
2025/2026
What is a general requirement of the location of the installation of a boiler? - SOLUTION -Adequate
clearance from combustile construction
What temperature must the materials remain under during combustion? - SOLUTION -170 degrees
What is a requirement for the access of the boiler? - SOLUTION -Access for operation and
maintenance must not be hazardous
What is required upon installation to operate a boiler? - SOLUTION -Inspection and test resulting in
equipment use permit from commissioner
How often should a boiler be inspected? - SOLUTION -Once a year
What documentation is required from a certificate holder? - SOLUTION -Owners annual statement
What is required to hydrostatically test upon installation and who should perform these tests? -
SOLUTION -Liquid fuel piping and fuel oil storage tanks by the installing contractor
At what pressure should piping be tested? - SOLUTION -1/2 max working pressure but less than
pressure required for storage tank
At what pressure should oil storage tanks be tested? - SOLUTION -At 1 1/2x max working pressure
but never < 25 psi
How long should hydrostatic pressure be maintained? - SOLUTION -Until all joints and connections
are inspected for leaks and at 30 minutes have passed
Who is responsible for testing gas distribution piping? - SOLUTION -Installing contractor before
closing and operation
What is described on instruction cards and where are they located? - SOLUTION -Care and operation
of oil burner located near the equipment.
What type of burners require a C of F holder to operate them? - SOLUTION -Any boiler that is not
automatic or requires preheating.
What is the license holder responsible for after repair? - SOLUTION -Inspecting the repairs, and
functioning of all control devices and positioning of valves.
What type of heat and combustion equipment are required with the air pollution control code? -
SOLUTION -All burners fire with solid, liquid, or gas. Including rubbish burners/incinerators.
What temperature are the products of combustion upon exit in low temperature equipment? -
SOLUTION -Less than 600 degrees
What temperature are the products of combustion upon exit in medium temperature equipment? -
SOLUTION -6001000
, What temperature are the products of combustion upon exit in high temperature equipment? -
SOLUTION -1000+
How much cfm of air be capable of per gallon of oil per hour? - SOLUTION -36 cfm
If ventilation is supplied mechanically, what is required of the pressure? - SOLUTION -It must be
greater than the atmospheric pressure outdoors
How are flue dampers designed? - SOLUTION -So that they cannot completely cut off passage of flue
gasses at any time
When can tight closing dampers be installed? - SOLUTION -When accompanied by approved
automatical draft and combustion controls.
What is the minimum flashpoint for fuel oils to mean hydrocarbon oils? - SOLUTION -100 degrees
What type of oils should be used in low pressure burners? - SOLUTION -No. 1(range oil), no. 2(diesel
oil), no. 4, no. 5, no. 6
What oil is prohibited? - SOLUTION -Crank case refuse oil
What is required of the size of overflow pipes? - SOLUTION -They should at least be the same size as
supply pipes
Where should a relief valve be installed? - SOLUTION -In the discharge line between the pump and
the first shut off valve
How is oil heated in storage tanks? - SOLUTION -Coils using low pressure hot water/steam or
approved electric heaters.
Where are shut off valves required? - SOLUTION -One at the supply line at the tank and and one at
the supply line at the burner
What stops the flow of oil? - SOLUTION -Remote control
Where is the remote control located? - SOLUTION -As close to the entrance of the boiler room as
practical or immediately inside as long as it's accessible at all times. On tank if 60 gal or less
What are the 4 safety controls implemented? - SOLUTION -Oil temperature control, ignition,
stack/combustion control, and high pressure and temperature control.
Is a chimney required to install a burner? - SOLUTION -Yes
What temperature is no. 6 oil heated to in the tank? - SOLUTION -100-130 degrees
What does excessive readings in the vacuum gauge indicate? - SOLUTION -Obstruction in the the
suction line, strainer must be cleaned
What temperature do preheaters further heat the oil to? - SOLUTION -160-180 degrees
When will the main fuel valve shut down the burner? - SOLUTION -When there's a failure of ignition
or combustion
What is the purpose of the oil return line? - SOLUTION -To circulate oil that hasn't been atomized
back into storage
CORRECT ANSWERS | LATEST VERSION
2025/2026
What is a general requirement of the location of the installation of a boiler? - SOLUTION -Adequate
clearance from combustile construction
What temperature must the materials remain under during combustion? - SOLUTION -170 degrees
What is a requirement for the access of the boiler? - SOLUTION -Access for operation and
maintenance must not be hazardous
What is required upon installation to operate a boiler? - SOLUTION -Inspection and test resulting in
equipment use permit from commissioner
How often should a boiler be inspected? - SOLUTION -Once a year
What documentation is required from a certificate holder? - SOLUTION -Owners annual statement
What is required to hydrostatically test upon installation and who should perform these tests? -
SOLUTION -Liquid fuel piping and fuel oil storage tanks by the installing contractor
At what pressure should piping be tested? - SOLUTION -1/2 max working pressure but less than
pressure required for storage tank
At what pressure should oil storage tanks be tested? - SOLUTION -At 1 1/2x max working pressure
but never < 25 psi
How long should hydrostatic pressure be maintained? - SOLUTION -Until all joints and connections
are inspected for leaks and at 30 minutes have passed
Who is responsible for testing gas distribution piping? - SOLUTION -Installing contractor before
closing and operation
What is described on instruction cards and where are they located? - SOLUTION -Care and operation
of oil burner located near the equipment.
What type of burners require a C of F holder to operate them? - SOLUTION -Any boiler that is not
automatic or requires preheating.
What is the license holder responsible for after repair? - SOLUTION -Inspecting the repairs, and
functioning of all control devices and positioning of valves.
What type of heat and combustion equipment are required with the air pollution control code? -
SOLUTION -All burners fire with solid, liquid, or gas. Including rubbish burners/incinerators.
What temperature are the products of combustion upon exit in low temperature equipment? -
SOLUTION -Less than 600 degrees
What temperature are the products of combustion upon exit in medium temperature equipment? -
SOLUTION -6001000
, What temperature are the products of combustion upon exit in high temperature equipment? -
SOLUTION -1000+
How much cfm of air be capable of per gallon of oil per hour? - SOLUTION -36 cfm
If ventilation is supplied mechanically, what is required of the pressure? - SOLUTION -It must be
greater than the atmospheric pressure outdoors
How are flue dampers designed? - SOLUTION -So that they cannot completely cut off passage of flue
gasses at any time
When can tight closing dampers be installed? - SOLUTION -When accompanied by approved
automatical draft and combustion controls.
What is the minimum flashpoint for fuel oils to mean hydrocarbon oils? - SOLUTION -100 degrees
What type of oils should be used in low pressure burners? - SOLUTION -No. 1(range oil), no. 2(diesel
oil), no. 4, no. 5, no. 6
What oil is prohibited? - SOLUTION -Crank case refuse oil
What is required of the size of overflow pipes? - SOLUTION -They should at least be the same size as
supply pipes
Where should a relief valve be installed? - SOLUTION -In the discharge line between the pump and
the first shut off valve
How is oil heated in storage tanks? - SOLUTION -Coils using low pressure hot water/steam or
approved electric heaters.
Where are shut off valves required? - SOLUTION -One at the supply line at the tank and and one at
the supply line at the burner
What stops the flow of oil? - SOLUTION -Remote control
Where is the remote control located? - SOLUTION -As close to the entrance of the boiler room as
practical or immediately inside as long as it's accessible at all times. On tank if 60 gal or less
What are the 4 safety controls implemented? - SOLUTION -Oil temperature control, ignition,
stack/combustion control, and high pressure and temperature control.
Is a chimney required to install a burner? - SOLUTION -Yes
What temperature is no. 6 oil heated to in the tank? - SOLUTION -100-130 degrees
What does excessive readings in the vacuum gauge indicate? - SOLUTION -Obstruction in the the
suction line, strainer must be cleaned
What temperature do preheaters further heat the oil to? - SOLUTION -160-180 degrees
When will the main fuel valve shut down the burner? - SOLUTION -When there's a failure of ignition
or combustion
What is the purpose of the oil return line? - SOLUTION -To circulate oil that hasn't been atomized
back into storage
