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P98 Questions with Detailed Verified Answers
Suction pump Ans: ✓ ✓ ✓ circulates the oil throughout the system
Suction line Ans: ✓ ✓ ✓ has to be 6 inches from the bottom of the tank for sediment not to be
absorbed
Vacuum gauge Ans: ✓ ✓ ✓ a device that measures pressure below atmospheric pressure/is used
to indicate to the operator whether there is an
obstruction in the suction line
Excessive vacuum readings Ans: ✓ ✓ ✓ indicate that there is an obstruction in the suction line
Main fuel valve Ans: ✓ ✓ ✓ is electrically operated and will open or close the line leading to the
atomizer only for oil burners
Carbon and hydrogen Ans: ✓ ✓ ✓ are the two principal elements of fuel oil
During the combustion process, the carbon content of fuel oil is Ans: ✓ ✓ ✓ 85%
The hydrogen content of the oil is Ans: ✓ ✓ ✓ 14%
The air that contacts the oil prior to its leaving the nozzle is referred to as Ans: ✓ ✓ ✓ Primary air
the introduction of air from the blower or fan into the combustion chamber after the oil has left the
nozzle is referred to as Ans: ✓ ✓ ✓ secondary air
Oil burners require approximately Ans: ✓ ✓ ✓ 2000 cubic feet of air per gallon of oil consumed
During the process of combustion, one part of carbon unites with two parts of oxygen to produce
Ans: ✓ ✓ ✓ carbon dioxide (CO2)
Each time 1 pound of carbon is burned Ans: ✓ ✓ ✓ 14,544 BTU of heat are liberated
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A correctly adjusted oil burner flame will have an Ans: ✓ ✓ ✓ orange colored flame body with
small red tips
A red, smoky flame is an indication of a Ans: ✓ ✓ ✓ lack of air
A white, almost dazzling flame is an indication of a great amount of Ans: ✓ ✓ ✓ excess air
An insufficient air supply is one cause of Ans: ✓ ✓ ✓ dense, black smoke and soot
Insulated firebrick is lightweight firebrick that becomes Ans: ✓ ✓ ✓ cherry red 15 seconds after
the burner starts
Diesel generators should be tested at Ans: ✓ ✓ ✓ minimum monthly
Small portable diesel generators rang from Ans: ✓ ✓ ✓ 1K VA - 10K VA
Large office complexes, factories, and power stations generators rang from Ans: ✓ ✓ ✓ 8K VA -
2000K VA
Approval from the NYC department of buildings and FDNY is required before Ans: ✓ ✓ ✓ changing
any grade of fuel oil
The tank shut off valve permits the operator to Ans: ✓ ✓ ✓ stop the flow of oil to clean the
strainer and to perform maintenance
The burner shut-off valve is located as close as possible to
the burner to reduce Ans: ✓ ✓ ✓ the amount of oil remaining in the burner line after an
emergency shutdown.
A photoelectric cell is Ans: ✓ ✓ ✓ a flame detection control
Gauge glass is a device used to indicate Ans: ✓ ✓ ✓ the water level of a steam boiler.
A primary relay control is Ans: ✓ ✓ ✓ the main combustion controller
A primary relay control will shut down when Ans: ✓ ✓ ✓ no flame is detected
A smoke alarm is a device mounted on the smoke stack or chimney only if Ans: ✓ ✓ ✓ the
maximum fire rate is 20 gallons per hour or over
The pressure gauge reads in Ans: ✓ ✓ ✓ psi (pounds per square inch)
© Get it right 2025 Getaway - Stuvia US All rights reserved
P98 Questions with Detailed Verified Answers
Suction pump Ans: ✓ ✓ ✓ circulates the oil throughout the system
Suction line Ans: ✓ ✓ ✓ has to be 6 inches from the bottom of the tank for sediment not to be
absorbed
Vacuum gauge Ans: ✓ ✓ ✓ a device that measures pressure below atmospheric pressure/is used
to indicate to the operator whether there is an
obstruction in the suction line
Excessive vacuum readings Ans: ✓ ✓ ✓ indicate that there is an obstruction in the suction line
Main fuel valve Ans: ✓ ✓ ✓ is electrically operated and will open or close the line leading to the
atomizer only for oil burners
Carbon and hydrogen Ans: ✓ ✓ ✓ are the two principal elements of fuel oil
During the combustion process, the carbon content of fuel oil is Ans: ✓ ✓ ✓ 85%
The hydrogen content of the oil is Ans: ✓ ✓ ✓ 14%
The air that contacts the oil prior to its leaving the nozzle is referred to as Ans: ✓ ✓ ✓ Primary air
the introduction of air from the blower or fan into the combustion chamber after the oil has left the
nozzle is referred to as Ans: ✓ ✓ ✓ secondary air
Oil burners require approximately Ans: ✓ ✓ ✓ 2000 cubic feet of air per gallon of oil consumed
During the process of combustion, one part of carbon unites with two parts of oxygen to produce
Ans: ✓ ✓ ✓ carbon dioxide (CO2)
Each time 1 pound of carbon is burned Ans: ✓ ✓ ✓ 14,544 BTU of heat are liberated
© Get it right 2025 Getaway - Stuvia US All rights reserved
, Click here for more: Scholars nexus
A correctly adjusted oil burner flame will have an Ans: ✓ ✓ ✓ orange colored flame body with
small red tips
A red, smoky flame is an indication of a Ans: ✓ ✓ ✓ lack of air
A white, almost dazzling flame is an indication of a great amount of Ans: ✓ ✓ ✓ excess air
An insufficient air supply is one cause of Ans: ✓ ✓ ✓ dense, black smoke and soot
Insulated firebrick is lightweight firebrick that becomes Ans: ✓ ✓ ✓ cherry red 15 seconds after
the burner starts
Diesel generators should be tested at Ans: ✓ ✓ ✓ minimum monthly
Small portable diesel generators rang from Ans: ✓ ✓ ✓ 1K VA - 10K VA
Large office complexes, factories, and power stations generators rang from Ans: ✓ ✓ ✓ 8K VA -
2000K VA
Approval from the NYC department of buildings and FDNY is required before Ans: ✓ ✓ ✓ changing
any grade of fuel oil
The tank shut off valve permits the operator to Ans: ✓ ✓ ✓ stop the flow of oil to clean the
strainer and to perform maintenance
The burner shut-off valve is located as close as possible to
the burner to reduce Ans: ✓ ✓ ✓ the amount of oil remaining in the burner line after an
emergency shutdown.
A photoelectric cell is Ans: ✓ ✓ ✓ a flame detection control
Gauge glass is a device used to indicate Ans: ✓ ✓ ✓ the water level of a steam boiler.
A primary relay control is Ans: ✓ ✓ ✓ the main combustion controller
A primary relay control will shut down when Ans: ✓ ✓ ✓ no flame is detected
A smoke alarm is a device mounted on the smoke stack or chimney only if Ans: ✓ ✓ ✓ the
maximum fire rate is 20 gallons per hour or over
The pressure gauge reads in Ans: ✓ ✓ ✓ psi (pounds per square inch)
© Get it right 2025 Getaway - Stuvia US All rights reserved
