Fdny p-99 c of f Exam Questions &
Answers 100% Updated!
What is the minimum flashpoint for fuel oils to mean hydrocarbon oils? -
ANSWER -100 degrees
What type of oils should be used in low pressure burners? - ANSWER -No.
1(range oil), no. 2(diesel oil), no. 4, no. 5, no. 6
What oil is prohibited? - ANSWER -Crank case refuse oil
What is required of the size of overflow pipes? - ANSWER -They should at least
be the same size as supply pipes
Where should a relief valve be installed? - ANSWER -In the discharge line
between the pump and the first shut off valve
How is oil heated in storage tanks? - ANSWER -Coils using low pressure hot
water/steam or approved electric heaters.
Where are shut off valves required? - ANSWER -One at the supply line at the tank
and and one at the supply line at the burner
What stops the flow of oil? - ANSWER -Remote control
Where is the remote control located? - ANSWER -As close to the entrance of the
boiler room as practical or immediately inside as long as it's accessible at all times.
On tank if 60 gal or less
What are the 4 safety controls implemented? - ANSWER -Oil temperature control,
ignition, stack/combustion control, and high pressure and temperature control.
Is a chimney required to install a burner? - ANSWER -Yes
What temperature is no. 6 oil heated to in the tank? - ANSWER -100-130 degrees
, What does excessive readings in the vacuum gauge indicate? - ANSWER -
Obstruction in the the suction line, strainer must be cleaned
What temperature do preheaters further heat the oil to? - ANSWER -160-180
degrees
When will the main fuel valve shut down the burner? - ANSWER -When there's a
failure of ignition or combustion
What is the purpose of the oil return line? - ANSWER -To circulate oil that hasn't
been atomized back into storage
When is the back pressure relief valve necessary? - ANSWER -When the pressure
in the burner is too great
What is normal pressure during combustion of no. 6 oil? - ANSWER -30-50 psi
What is combustion and what is the result? - ANSWER -The chemical union of
oxygen in the air and combustible elements in oil (hydrogen and carbon). The
result is heat energy.
What percent of oil is carbon? - ANSWER -85%
What percent of oil is hydrogen? - ANSWER -14%
Can oil burn? Why or why not? - ANSWER -No it is a liquid fuel and must be
changed into a gas or vapor to burn
What process must take place before oil is burned? - ANSWER -
Vaporization/Atomization
At what pressure is the oil and air mixture delivered to the nozzle? - ANSWER -1-
15 psi
What is air that contacts the oil before it leave the nozzle called? - ANSWER -
Primary air
How much air do burners require per gallon of oil burner? - ANSWER -2000
cubic feet
Answers 100% Updated!
What is the minimum flashpoint for fuel oils to mean hydrocarbon oils? -
ANSWER -100 degrees
What type of oils should be used in low pressure burners? - ANSWER -No.
1(range oil), no. 2(diesel oil), no. 4, no. 5, no. 6
What oil is prohibited? - ANSWER -Crank case refuse oil
What is required of the size of overflow pipes? - ANSWER -They should at least
be the same size as supply pipes
Where should a relief valve be installed? - ANSWER -In the discharge line
between the pump and the first shut off valve
How is oil heated in storage tanks? - ANSWER -Coils using low pressure hot
water/steam or approved electric heaters.
Where are shut off valves required? - ANSWER -One at the supply line at the tank
and and one at the supply line at the burner
What stops the flow of oil? - ANSWER -Remote control
Where is the remote control located? - ANSWER -As close to the entrance of the
boiler room as practical or immediately inside as long as it's accessible at all times.
On tank if 60 gal or less
What are the 4 safety controls implemented? - ANSWER -Oil temperature control,
ignition, stack/combustion control, and high pressure and temperature control.
Is a chimney required to install a burner? - ANSWER -Yes
What temperature is no. 6 oil heated to in the tank? - ANSWER -100-130 degrees
, What does excessive readings in the vacuum gauge indicate? - ANSWER -
Obstruction in the the suction line, strainer must be cleaned
What temperature do preheaters further heat the oil to? - ANSWER -160-180
degrees
When will the main fuel valve shut down the burner? - ANSWER -When there's a
failure of ignition or combustion
What is the purpose of the oil return line? - ANSWER -To circulate oil that hasn't
been atomized back into storage
When is the back pressure relief valve necessary? - ANSWER -When the pressure
in the burner is too great
What is normal pressure during combustion of no. 6 oil? - ANSWER -30-50 psi
What is combustion and what is the result? - ANSWER -The chemical union of
oxygen in the air and combustible elements in oil (hydrogen and carbon). The
result is heat energy.
What percent of oil is carbon? - ANSWER -85%
What percent of oil is hydrogen? - ANSWER -14%
Can oil burn? Why or why not? - ANSWER -No it is a liquid fuel and must be
changed into a gas or vapor to burn
What process must take place before oil is burned? - ANSWER -
Vaporization/Atomization
At what pressure is the oil and air mixture delivered to the nozzle? - ANSWER -1-
15 psi
What is air that contacts the oil before it leave the nozzle called? - ANSWER -
Primary air
How much air do burners require per gallon of oil burner? - ANSWER -2000
cubic feet
