FDNY COF P-98 Fuel-Oil Transfer Supervision Exam
Questions & Answers 2026 | Latest Review Guide
1. Describe the significance of differentiating between the various grades of
fuel-oil in building operations.
The grades are only relevant for pricing, not for operational efficiency.
All grades of fuel-oil are interchangeable without affecting
performance.
Only No. 2 fuel-oil is used for heating in buildings.
Different grades of fuel-oil have varying properties that affect
combustion efficiency and emissions.
2. Describe the significance of the kilovolt-ampere (kVA) rating in relation to
portable generators.
The kVA rating is irrelevant to the generator's performance.
The kVA rating only applies to stationary generators.
The kVA rating reflects the fuel efficiency of the generator.
The kVA rating indicates the generator's capacity to supply power,
which is crucial for determining the types of equipment it can safely
operate.
3. The safety device that automatically shuts the boiler-burner(s) off when the
boiler water level drops below the water level control setting, is called a
_____?
pressure control
pigtail syphon
low-water cutoff
, pressure relief valve
4. If a building's storage tank shows a low fuel oil level on the gauge, what
immediate action should be taken to ensure compliance with safety
standards?
Ignore the gauge and continue operations.
Conduct a test of the oil combustion efficiency.
Refill the storage tank to maintain adequate fuel supply.
Increase the temperature of the oil burners.
5. What is the primary requirement for buildings that transfer fuel from the
lowest floor to upper floor tanks?
The building must have a separate ventilation system for fuel storage.
The building must be equipped with a fire suppression system.
The building must have a means of preventing spills and leaks
during the transfer process.
The building must have a dedicated fuel transfer pump.
6. Fuel oil burners are designed to provide fuel oil in a fine spray. This process is
called ____
ignition
fission
atomization
fusion
7. Describe the relationship between air mixing and the combustion efficiency
of fuel oil.
, More air always leads to better combustion regardless of oil quality.
The efficiency of fuel oil combustion is enhanced when the correct
amount of air is mixed with the oil, leading to complete burning and
reduced emissions.
Air mixing is only important for safety, not efficiency.
Air mixing has no impact on combustion efficiency.
8. Describe the purpose of having a manual reset control in conjunction with a
smoke alarm for an oil burner.
The manual reset control automatically restarts the burner after a
shutdown.
The manual reset control ensures that the oil burner can only be
restarted after the smoke alarm has been triggered and the issue
has been addressed.
The manual reset control monitors the fuel levels in the burner.
The manual reset control adjusts the temperature settings of the
burner.
9. If a building requires a continuous power supply of 1,200 kVA, what size of
stationary generator would be appropriate to ensure adequate power
without overloading?
A generator rated at exactly 1,200 kVA.
A generator rated above 1,200 kVA, ideally in the range of 1,500 kVA.
A generator rated at 2,000 kVA, which is too large.
A generator rated below 1,200 kVA.
, 10. What is the name of the device used to measure pressure below
atmospheric pressure?
Barometer
Pressure transducer
Vacuum gauge
Manometer
11. Describe the significance of the kVA rating in relation to the operation of
large stationary generators.
The kVA rating only affects the fuel consumption of the generator.
The kVA rating indicates the generator's capacity to supply power,
which is crucial for ensuring it meets the energy demands of the
building.
The kVA rating determines the physical size of the generator.
The kVA rating is irrelevant to the generator's performance.
12. Describe the function of the low water cutoff in a fuel-oil system.
The low water cutoff measures the pressure in the fuel-oil system.
The low water cutoff controls the combustion efficiency of the
burner.
The low water cutoff regulates the fuel flow to the burner based on
temperature.
The low water cutoff prevents the burner from operating when the
water level is below a safe point, protecting the system from
damage.
Questions & Answers 2026 | Latest Review Guide
1. Describe the significance of differentiating between the various grades of
fuel-oil in building operations.
The grades are only relevant for pricing, not for operational efficiency.
All grades of fuel-oil are interchangeable without affecting
performance.
Only No. 2 fuel-oil is used for heating in buildings.
Different grades of fuel-oil have varying properties that affect
combustion efficiency and emissions.
2. Describe the significance of the kilovolt-ampere (kVA) rating in relation to
portable generators.
The kVA rating is irrelevant to the generator's performance.
The kVA rating only applies to stationary generators.
The kVA rating reflects the fuel efficiency of the generator.
The kVA rating indicates the generator's capacity to supply power,
which is crucial for determining the types of equipment it can safely
operate.
3. The safety device that automatically shuts the boiler-burner(s) off when the
boiler water level drops below the water level control setting, is called a
_____?
pressure control
pigtail syphon
low-water cutoff
, pressure relief valve
4. If a building's storage tank shows a low fuel oil level on the gauge, what
immediate action should be taken to ensure compliance with safety
standards?
Ignore the gauge and continue operations.
Conduct a test of the oil combustion efficiency.
Refill the storage tank to maintain adequate fuel supply.
Increase the temperature of the oil burners.
5. What is the primary requirement for buildings that transfer fuel from the
lowest floor to upper floor tanks?
The building must have a separate ventilation system for fuel storage.
The building must be equipped with a fire suppression system.
The building must have a means of preventing spills and leaks
during the transfer process.
The building must have a dedicated fuel transfer pump.
6. Fuel oil burners are designed to provide fuel oil in a fine spray. This process is
called ____
ignition
fission
atomization
fusion
7. Describe the relationship between air mixing and the combustion efficiency
of fuel oil.
, More air always leads to better combustion regardless of oil quality.
The efficiency of fuel oil combustion is enhanced when the correct
amount of air is mixed with the oil, leading to complete burning and
reduced emissions.
Air mixing is only important for safety, not efficiency.
Air mixing has no impact on combustion efficiency.
8. Describe the purpose of having a manual reset control in conjunction with a
smoke alarm for an oil burner.
The manual reset control automatically restarts the burner after a
shutdown.
The manual reset control ensures that the oil burner can only be
restarted after the smoke alarm has been triggered and the issue
has been addressed.
The manual reset control monitors the fuel levels in the burner.
The manual reset control adjusts the temperature settings of the
burner.
9. If a building requires a continuous power supply of 1,200 kVA, what size of
stationary generator would be appropriate to ensure adequate power
without overloading?
A generator rated at exactly 1,200 kVA.
A generator rated above 1,200 kVA, ideally in the range of 1,500 kVA.
A generator rated at 2,000 kVA, which is too large.
A generator rated below 1,200 kVA.
, 10. What is the name of the device used to measure pressure below
atmospheric pressure?
Barometer
Pressure transducer
Vacuum gauge
Manometer
11. Describe the significance of the kVA rating in relation to the operation of
large stationary generators.
The kVA rating only affects the fuel consumption of the generator.
The kVA rating indicates the generator's capacity to supply power,
which is crucial for ensuring it meets the energy demands of the
building.
The kVA rating determines the physical size of the generator.
The kVA rating is irrelevant to the generator's performance.
12. Describe the function of the low water cutoff in a fuel-oil system.
The low water cutoff measures the pressure in the fuel-oil system.
The low water cutoff controls the combustion efficiency of the
burner.
The low water cutoff regulates the fuel flow to the burner based on
temperature.
The low water cutoff prevents the burner from operating when the
water level is below a safe point, protecting the system from
damage.
