FDNY COF P-98 test questions & Answers updated
solution 2026-2027 Exam Complete 60 Questions and
Correct Detailed Answers (Verified Answers) Already
Graded A+ Brand New Version!!
A correctly adjusted oil burner flame will have an - CORRECT ANSWER: orange colored flame
body with small red tips
A defective oil cut-off valve can lead to - CORRECT ANSWER: after-drip
A photoelectric cell is - CORRECT ANSWER: a flame detection control
A primary relay control is - CORRECT ANSWER: the main combustion controller
A primary relay control will shut down when - CORRECT ANSWER: no flame is detected
A red, smoky flame is an indication of a - CORRECT ANSWER: lack of air
A smoke alarm is a device mounted on the smoke stack or chimney only if - CORRECT
ANSWER: the maximum fire rate is 20 gallons per hour or over
A total of not more than 100,000 gallons - CORRECT ANSWER: shall be stored inside any
building
A white, almost dazzling flame is an indication of a great amount of - CORRECT ANSWER:
excess air
, All oil burning equipment and piping must be inspected - CORRECT ANSWER: AT LEAST
ONCE A WEEK by the P-98 Certificate of Fitness holder
An insufficient air supply is one cause of - CORRECT ANSWER: dense, black smoke and soot
Approval from the NYC department of buildings and FDNY is required before - CORRECT
ANSWER: changing any grade of fuel oil
Blockage in the chimney or flue passage will cause - CORRECT ANSWER: the cellar or boiler
room to become filled with smoke
Carbon and hydrogen - CORRECT ANSWER: are the two principal elements of fuel oil
Diesel generators should be tested at - CORRECT ANSWER: minimum monthly
Dirty or damaged nozzles or rotary cups can cause - CORRECT ANSWER: improper
atomization
During the combustion process, the carbon content of fuel oil is - CORRECT ANSWER: 85%
During the process of combustion, one part of carbon unites with two parts of oxygen to produce
- CORRECT ANSWER: carbon dioxide (CO2)
Each time 1 pound of carbon is burned - CORRECT ANSWER: 14,544 BTU of heat are
liberated
Excessive vacuum readings - CORRECT ANSWER: indicate that there is an obstruction in the
suction line
solution 2026-2027 Exam Complete 60 Questions and
Correct Detailed Answers (Verified Answers) Already
Graded A+ Brand New Version!!
A correctly adjusted oil burner flame will have an - CORRECT ANSWER: orange colored flame
body with small red tips
A defective oil cut-off valve can lead to - CORRECT ANSWER: after-drip
A photoelectric cell is - CORRECT ANSWER: a flame detection control
A primary relay control is - CORRECT ANSWER: the main combustion controller
A primary relay control will shut down when - CORRECT ANSWER: no flame is detected
A red, smoky flame is an indication of a - CORRECT ANSWER: lack of air
A smoke alarm is a device mounted on the smoke stack or chimney only if - CORRECT
ANSWER: the maximum fire rate is 20 gallons per hour or over
A total of not more than 100,000 gallons - CORRECT ANSWER: shall be stored inside any
building
A white, almost dazzling flame is an indication of a great amount of - CORRECT ANSWER:
excess air
, All oil burning equipment and piping must be inspected - CORRECT ANSWER: AT LEAST
ONCE A WEEK by the P-98 Certificate of Fitness holder
An insufficient air supply is one cause of - CORRECT ANSWER: dense, black smoke and soot
Approval from the NYC department of buildings and FDNY is required before - CORRECT
ANSWER: changing any grade of fuel oil
Blockage in the chimney or flue passage will cause - CORRECT ANSWER: the cellar or boiler
room to become filled with smoke
Carbon and hydrogen - CORRECT ANSWER: are the two principal elements of fuel oil
Diesel generators should be tested at - CORRECT ANSWER: minimum monthly
Dirty or damaged nozzles or rotary cups can cause - CORRECT ANSWER: improper
atomization
During the combustion process, the carbon content of fuel oil is - CORRECT ANSWER: 85%
During the process of combustion, one part of carbon unites with two parts of oxygen to produce
- CORRECT ANSWER: carbon dioxide (CO2)
Each time 1 pound of carbon is burned - CORRECT ANSWER: 14,544 BTU of heat are
liberated
Excessive vacuum readings - CORRECT ANSWER: indicate that there is an obstruction in the
suction line
