FDNY CoF Fuel Oil Piping and Storage System P98 Ultimate
Exam: Practice Questions & Code Rationales 3 versions
This specialized municipal preparation guide delivers comprehensive practice
questions, verified answers, and detailed regulatory rationales custom-designed for the
FDNY Certificate of Fitness (CoF) P98 examination. It provides exhaustive coverage of
the New York City Fire Code and Mechanical Code regulations governing the safe
operation, maintenance, and piping systems of fuel oil storage facilities. Certification
candidates and structural engineers will master critical safety parameters, transfer pump
mechanics, leak detection tracking, and emergency shutdown protocols to successfully
secure their official city licensing credentials.
1. What is the maximum allowable fuel oil tank capacity for indoor installation
without a special permit in New York City?
A) 660 gallons
B) 1,100 gallons
C) 2,000 gallons
D) 5,000 gallons
Rationale: NYC Fire Code limits indoor fuel oil storage tanks to a maximum of 1,100
gallons without requiring a special permit.
2. Which NFPA standard specifically covers the installation of oil-burning
equipment?
A) NFPA 10
B) NFPA 31
C) NFPA 70
D) NFPA 101
Rationale: NFPA 31 is the Standard for the Installation of Oil-Burning Equipment, covering
design, installation, and maintenance.
,3. How often must fuel oil storage tanks be inspected for water accumulation?
A) Daily
B) Weekly
C) Monthly
D) Annually
Rationale: Water in fuel oil tanks must be checked weekly and removed if it exceeds 2
inches to prevent corrosion and system failure.
4. What is the maximum allowable water depth in a fuel oil storage tank?
A) 1 inch
B) 2 inches
C) 3 inches
D) 4 inches
Rationale: Water accumulation must not exceed 2 inches; exceeding this can lead to
microbial growth and tank corrosion.
5. What is the required slope for fuel oil piping to ensure proper drainage?
A) 1/8 inch per foot
B) 1/4 inch per foot
C) 1/2 inch per foot
D) 1 inch per foot
Rationale: Fuel oil piping must slope at least 1/4 inch per foot toward the tank or a drain
point to prevent oil from pooling.
6. Which type of valve is required on the fuel oil supply line near the burner for
emergency isolation?
A) Check valve
B) Manual shutoff valve
,C) Pressure relief valve
D) Solenoid valve
Rationale: A manual shutoff valve must be installed on the supply line near the burner to
allow immediate fuel isolation in an emergency.
7. What is the primary purpose of a fuel oil day tank?
A) To store oil for the entire building
B) To provide a limited supply of oil to a burner located above the lowest floor
C) To act as a reserve for emergency generators
D) To filter oil for the entire system
Rationale: A day tank supplies a limited amount of oil to a burner on an upper floor, with
a maximum capacity of 330 gallons per story.
8. What is the maximum allowable capacity for a day tank located on an upper
floor?
A) 100 gallons
B) 275 gallons
C) 330 gallons
D) 660 gallons
Rationale: NYC Fire Code strictly limits fuel oil storage on any story above the lowest floor
to 330 gallons.
9. What is the required design capacity for secondary containment around a day
tank on an upper floor?
A) 100% of tank capacity
B) 150% of tank capacity
C) 200% of tank capacity
D) 250% of tank capacity
, Rationale: Containment structures must hold at least 200% of the tank's volume to safely
contain a catastrophic leak.
10. Which agency issues the Certificate of Compliance required to operate fuel-oil
burning equipment?
A) FDNY
B) NYC Department of Buildings (DOB)
C) NYS Department of Environmental Conservation (DEC)
D) NYC Department of Environmental Protection (DEP)
Rationale: Operating approval for fuel-burning installations must be obtained from the
NYC DOB via a Certificate of Compliance.
11. What is the maximum total volume of fuel oil allowed to be stored inside any
single building in New York City?
A) 10,000 gallons
B) 50,000 gallons
C) 100,000 gallons
D) 250,000 gallons
Rationale: The building and fire codes restrict the gross maximum storage capacity of fuel
oil within a single structure to 100,000 gallons.
12. How often must emergency stop switches for fuel oil systems be tested?
A) Daily
B) Monthly
C) Annually
D) Every 5 years
Rationale: Emergency stop switches must be tested monthly to ensure proper function in
an emergency.
Exam: Practice Questions & Code Rationales 3 versions
This specialized municipal preparation guide delivers comprehensive practice
questions, verified answers, and detailed regulatory rationales custom-designed for the
FDNY Certificate of Fitness (CoF) P98 examination. It provides exhaustive coverage of
the New York City Fire Code and Mechanical Code regulations governing the safe
operation, maintenance, and piping systems of fuel oil storage facilities. Certification
candidates and structural engineers will master critical safety parameters, transfer pump
mechanics, leak detection tracking, and emergency shutdown protocols to successfully
secure their official city licensing credentials.
1. What is the maximum allowable fuel oil tank capacity for indoor installation
without a special permit in New York City?
A) 660 gallons
B) 1,100 gallons
C) 2,000 gallons
D) 5,000 gallons
Rationale: NYC Fire Code limits indoor fuel oil storage tanks to a maximum of 1,100
gallons without requiring a special permit.
2. Which NFPA standard specifically covers the installation of oil-burning
equipment?
A) NFPA 10
B) NFPA 31
C) NFPA 70
D) NFPA 101
Rationale: NFPA 31 is the Standard for the Installation of Oil-Burning Equipment, covering
design, installation, and maintenance.
,3. How often must fuel oil storage tanks be inspected for water accumulation?
A) Daily
B) Weekly
C) Monthly
D) Annually
Rationale: Water in fuel oil tanks must be checked weekly and removed if it exceeds 2
inches to prevent corrosion and system failure.
4. What is the maximum allowable water depth in a fuel oil storage tank?
A) 1 inch
B) 2 inches
C) 3 inches
D) 4 inches
Rationale: Water accumulation must not exceed 2 inches; exceeding this can lead to
microbial growth and tank corrosion.
5. What is the required slope for fuel oil piping to ensure proper drainage?
A) 1/8 inch per foot
B) 1/4 inch per foot
C) 1/2 inch per foot
D) 1 inch per foot
Rationale: Fuel oil piping must slope at least 1/4 inch per foot toward the tank or a drain
point to prevent oil from pooling.
6. Which type of valve is required on the fuel oil supply line near the burner for
emergency isolation?
A) Check valve
B) Manual shutoff valve
,C) Pressure relief valve
D) Solenoid valve
Rationale: A manual shutoff valve must be installed on the supply line near the burner to
allow immediate fuel isolation in an emergency.
7. What is the primary purpose of a fuel oil day tank?
A) To store oil for the entire building
B) To provide a limited supply of oil to a burner located above the lowest floor
C) To act as a reserve for emergency generators
D) To filter oil for the entire system
Rationale: A day tank supplies a limited amount of oil to a burner on an upper floor, with
a maximum capacity of 330 gallons per story.
8. What is the maximum allowable capacity for a day tank located on an upper
floor?
A) 100 gallons
B) 275 gallons
C) 330 gallons
D) 660 gallons
Rationale: NYC Fire Code strictly limits fuel oil storage on any story above the lowest floor
to 330 gallons.
9. What is the required design capacity for secondary containment around a day
tank on an upper floor?
A) 100% of tank capacity
B) 150% of tank capacity
C) 200% of tank capacity
D) 250% of tank capacity
, Rationale: Containment structures must hold at least 200% of the tank's volume to safely
contain a catastrophic leak.
10. Which agency issues the Certificate of Compliance required to operate fuel-oil
burning equipment?
A) FDNY
B) NYC Department of Buildings (DOB)
C) NYS Department of Environmental Conservation (DEC)
D) NYC Department of Environmental Protection (DEP)
Rationale: Operating approval for fuel-burning installations must be obtained from the
NYC DOB via a Certificate of Compliance.
11. What is the maximum total volume of fuel oil allowed to be stored inside any
single building in New York City?
A) 10,000 gallons
B) 50,000 gallons
C) 100,000 gallons
D) 250,000 gallons
Rationale: The building and fire codes restrict the gross maximum storage capacity of fuel
oil within a single structure to 100,000 gallons.
12. How often must emergency stop switches for fuel oil systems be tested?
A) Daily
B) Monthly
C) Annually
D) Every 5 years
Rationale: Emergency stop switches must be tested monthly to ensure proper function in
an emergency.
