FDNY COF P-98 EXAM AND PRACTICE EXAM 2025-2026
1.- Where generally Fuel-oil is used in
buildings? What purposes?
Is used in Stationary Equipment
Two purposes:
a) Fuel Emergency Generators
b) Fuel Equipment used to heat the building
2.- What COF is required to supervise the Fuel-oil transfer in the building from one floor to
another?
- P-98 and maintain all qualifications and comply w/ requirements applicable to such certificate
holder
- The P-98 COF is premise-related
3.- The use of the word should refers to:
Policies, procedures and/or best practices recommended by the FDNY, and may not be a
codified requirement.
4.- The use of the word shall refers to:
Requirement of the Fire Code or the FDNY
5.- Supervision of Fuel-Oil Piping & Storage Operation
Shall be under the GENERAL SUPERVISION of P-98:
A stationary fuel-oil storage tank, related piping, that is installed on the lowest floor of the
building and transfer fuel-oil through piping to another stationary fuel-oil storage tank, or
fuel burning equipment, installed above such floor
7.- Maintenance Requirements
Fuel-oil storage tanks and piping shall be inspected for any evidence of leaks
Weekly
,FDNY COF P-98 EXAM AND PRACTICE EXAM 2025-2026
6.- Supervision of Fuel-Oil Piping & Storage Operation Shall be under the PERSONAL
SUPERVISION of P-98 COF
Periodic Inspection and Testing of tanks and
piping 8.- Maintenance Requirements
Fuel-oil storage tanks shall have their float switches tested to ensure that they are in good
working order at least
Weekly
9.- Licences & Certificates
No oil burning equipment may operated until
a) Certificate of Compliance has been issued by NYCDOB
b) Air pollution control code requirements NYCDEP
c) Permit for the Storage & use of fuel-oil issued by
FDNY 10.- Licences & Certificates
Pursuant to the New NYC Fire Code & Mechanical Codes stated that
The COF is required for all existing and new buildings where fuel is being transported from
the lowest levels to tanks or equipment on upper floors
11.- Oil Circulation in the
System Diagram #1
The process of oil circulation from the tank at the lowest floor of a building to the burner on
the floor above such floor through the pump.
12.- Oil Circulation in the
System Oil storage tank
Provides the supply of oil for combustion in the oil burner. It is inside a dike. In case of a leak
the diked area will contain the oil. In its normal condition, #2 fuel-oil is thin and light and is
easily pumped through the circulation system
13.- Oil Circulation in the
System A Suction pump
,FDNY COF P-98 EXAM AND PRACTICE EXAM 2025-2026
Circulates the oil throughout the system. Dirt and sediment are present in the fuel-oil coming
from the oil storage tank. The oil filter removes most of these contaminants from the oil before
the oil reaches the burner's strainer.
14.- Oil Circulation in the
System The Suction Line
Has to be 6 inches from the bottom of the tank for sediments not to be absorbed. The vacuum
gauge is a device that measures pressure below atmospheric pressure. Excessive vacuum
readings indicate that there is an obstruction in the suction line (such as dirty oil strainer).
When this occurs the flow of oil can be stopped by closing the shut-off valve. This permits the
operator to clean the filter/strainer or to perform other maintenance
15.- Oil Circulation in the
System Main Fuel Valve
Electrically operated and will open or close the line leading to the atomizer only for oil
burners. It will shut down the burner system if there is a failure of ignition or combustion.
16.- Oil Circulation in the
System A Back Pressure
Relief Valve
Oil circulates through the piping system back to the storage tank through the oil return line. A
back pressure relief valve is provided for safety if the pressure becomes too great. Day tanks
may be located throughout the building above the lowest floor
17.- Oil Circulation in the
System A Separate Pump
Required for each day tank to supply each floor. In case of a leak in the piping, leak collector
is provided. Leak collector is stored by the storage tank. It has a oil level gauge which shows
the amount collected
18.- Oil Circulation in the
System Level Gauge
A gauge will show how much fuel oil is inside a main storage tank/day
tank. 19.- Oil Burner Operation
Combustion
, FDNY COF P-98 EXAM AND PRACTICE EXAM 2025-2026
Is the chemical union of the oxygen in the air with combustible elements in fuel-oil (hydrogen
and carbon). The end result of this process is the production of heat energy
20.- Oil Burner
Operation Oil Firing
Equipment
Used to liberate heat energy from fuel-oil. Oil burners are the principal components of the oil
firing equipment and provide the means of supporting the process of combustion.
21.- Oil Burner Operation
Two principal elements of fuel-oil
Carbon and hydrogen. During the combustion process, the carbon content of fuel-oil (about
85%) unites with the oxygen in the air and forms carbon dioxide and carbon monoxide. The
hydrogen content of the oil (about 14%) unites with the oxygen and produces water. The
objective is to have a complete combustion process
22.- Oil Burner Operation
In order to support combustion
It must be changed to a gas or vapor and mixed
with air 23.- Oil Burner Operation
The Oil burner
Primarily a device for processing the liquid fuel for combustion by accelerating the change
from liquid to a vapor that can be mixed with air and burned.
24.- Oil Burner Operation
Atomizing Oil
This process of breaking down or atomizing the oil is to ensure prompt ignition and rapid
combustion. Although there are various types of oil burners, i.e. generator or boiler, they all
vaporize or atomize the oil before it enters the combustion chamber where it is mixed with air
in predetermined proportions.
25.- Oil Burner
Operation Oil burner
uses an Oil Pump
Mixes air and oil within the nozzle itself. In oil burners, the oil and air mixture is delivered to
the nozzle at a pressure dependent upon the make of the burner. The air that contacts the oil
1.- Where generally Fuel-oil is used in
buildings? What purposes?
Is used in Stationary Equipment
Two purposes:
a) Fuel Emergency Generators
b) Fuel Equipment used to heat the building
2.- What COF is required to supervise the Fuel-oil transfer in the building from one floor to
another?
- P-98 and maintain all qualifications and comply w/ requirements applicable to such certificate
holder
- The P-98 COF is premise-related
3.- The use of the word should refers to:
Policies, procedures and/or best practices recommended by the FDNY, and may not be a
codified requirement.
4.- The use of the word shall refers to:
Requirement of the Fire Code or the FDNY
5.- Supervision of Fuel-Oil Piping & Storage Operation
Shall be under the GENERAL SUPERVISION of P-98:
A stationary fuel-oil storage tank, related piping, that is installed on the lowest floor of the
building and transfer fuel-oil through piping to another stationary fuel-oil storage tank, or
fuel burning equipment, installed above such floor
7.- Maintenance Requirements
Fuel-oil storage tanks and piping shall be inspected for any evidence of leaks
Weekly
,FDNY COF P-98 EXAM AND PRACTICE EXAM 2025-2026
6.- Supervision of Fuel-Oil Piping & Storage Operation Shall be under the PERSONAL
SUPERVISION of P-98 COF
Periodic Inspection and Testing of tanks and
piping 8.- Maintenance Requirements
Fuel-oil storage tanks shall have their float switches tested to ensure that they are in good
working order at least
Weekly
9.- Licences & Certificates
No oil burning equipment may operated until
a) Certificate of Compliance has been issued by NYCDOB
b) Air pollution control code requirements NYCDEP
c) Permit for the Storage & use of fuel-oil issued by
FDNY 10.- Licences & Certificates
Pursuant to the New NYC Fire Code & Mechanical Codes stated that
The COF is required for all existing and new buildings where fuel is being transported from
the lowest levels to tanks or equipment on upper floors
11.- Oil Circulation in the
System Diagram #1
The process of oil circulation from the tank at the lowest floor of a building to the burner on
the floor above such floor through the pump.
12.- Oil Circulation in the
System Oil storage tank
Provides the supply of oil for combustion in the oil burner. It is inside a dike. In case of a leak
the diked area will contain the oil. In its normal condition, #2 fuel-oil is thin and light and is
easily pumped through the circulation system
13.- Oil Circulation in the
System A Suction pump
,FDNY COF P-98 EXAM AND PRACTICE EXAM 2025-2026
Circulates the oil throughout the system. Dirt and sediment are present in the fuel-oil coming
from the oil storage tank. The oil filter removes most of these contaminants from the oil before
the oil reaches the burner's strainer.
14.- Oil Circulation in the
System The Suction Line
Has to be 6 inches from the bottom of the tank for sediments not to be absorbed. The vacuum
gauge is a device that measures pressure below atmospheric pressure. Excessive vacuum
readings indicate that there is an obstruction in the suction line (such as dirty oil strainer).
When this occurs the flow of oil can be stopped by closing the shut-off valve. This permits the
operator to clean the filter/strainer or to perform other maintenance
15.- Oil Circulation in the
System Main Fuel Valve
Electrically operated and will open or close the line leading to the atomizer only for oil
burners. It will shut down the burner system if there is a failure of ignition or combustion.
16.- Oil Circulation in the
System A Back Pressure
Relief Valve
Oil circulates through the piping system back to the storage tank through the oil return line. A
back pressure relief valve is provided for safety if the pressure becomes too great. Day tanks
may be located throughout the building above the lowest floor
17.- Oil Circulation in the
System A Separate Pump
Required for each day tank to supply each floor. In case of a leak in the piping, leak collector
is provided. Leak collector is stored by the storage tank. It has a oil level gauge which shows
the amount collected
18.- Oil Circulation in the
System Level Gauge
A gauge will show how much fuel oil is inside a main storage tank/day
tank. 19.- Oil Burner Operation
Combustion
, FDNY COF P-98 EXAM AND PRACTICE EXAM 2025-2026
Is the chemical union of the oxygen in the air with combustible elements in fuel-oil (hydrogen
and carbon). The end result of this process is the production of heat energy
20.- Oil Burner
Operation Oil Firing
Equipment
Used to liberate heat energy from fuel-oil. Oil burners are the principal components of the oil
firing equipment and provide the means of supporting the process of combustion.
21.- Oil Burner Operation
Two principal elements of fuel-oil
Carbon and hydrogen. During the combustion process, the carbon content of fuel-oil (about
85%) unites with the oxygen in the air and forms carbon dioxide and carbon monoxide. The
hydrogen content of the oil (about 14%) unites with the oxygen and produces water. The
objective is to have a complete combustion process
22.- Oil Burner Operation
In order to support combustion
It must be changed to a gas or vapor and mixed
with air 23.- Oil Burner Operation
The Oil burner
Primarily a device for processing the liquid fuel for combustion by accelerating the change
from liquid to a vapor that can be mixed with air and burned.
24.- Oil Burner Operation
Atomizing Oil
This process of breaking down or atomizing the oil is to ensure prompt ignition and rapid
combustion. Although there are various types of oil burners, i.e. generator or boiler, they all
vaporize or atomize the oil before it enters the combustion chamber where it is mixed with air
in predetermined proportions.
25.- Oil Burner
Operation Oil burner
uses an Oil Pump
Mixes air and oil within the nozzle itself. In oil burners, the oil and air mixture is delivered to
the nozzle at a pressure dependent upon the make of the burner. The air that contacts the oil
