MASSACHUSETTS OIL BURNER PRACTICE
PRACTICE SCRIPT 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
⩥ Pour point problems with outside above ground fuel tanks can be
partially relived by: Answer: -Relocating the outside fuel filters and
strainers to the inside
-Switching to #1 fuel oil
-Reducing the pour point of #2 fuel oil by blending it with #1 fuel oil
⩥ A fuel oil storage tank cannot be installed: Answer: In the furnace
room within 5 feet of the heating unit
⩥ the primary purpose of a fuel pump on a high pressure burner is to:
Answer: -Deliver oil at a constant and regulated pressure to the nozzle
-Move oil from the tank to the pump
-Provide a screen to filter the oil
⩥ If the vacuum reading is substantially above the calculated reading,
(with the burner running) the cause may be: Answer: All of the above -
plugged fuel filter, kinked oil supply line, check valve sticking
, ⩥ With most new flame retention burners, the motor speed is: Answer:
3450 rpm
⩥ To check for a proper nozzle line cut-off, the pressure gauge is
installed in the: Answer: Nozzle port
⩥ Fuel units are generally set at the factory at: Answer: 100 psi
⩥ the oil burner nozzle in a high pressure burner performs the following
functions: Answer: All of the above - atomizes the oil, provides a pattern
of oil spray, delivers a fixed amount of oil
⩥ the nozzle flow rate, spray angle and pattern are directly related to:
Answer: All of the above - tangential slots, swirl chamber, orifice
⩥ Cold oil or high viscosity problems may be eliminated by: Answer: A
& B - increasing pump pressure and reducing nozzle size & installing a
nozzle line pre-heater
⩥ the following conditions or elements affect choosing the correct
nozzle spray patterns: Answer: A&B - Air-oil mixing design of the
burner & Shape of the chamber
⩥ which condition affects nozzle spray droplet size? Answer: Fuel pump
pressure
PRACTICE SCRIPT 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
⩥ Pour point problems with outside above ground fuel tanks can be
partially relived by: Answer: -Relocating the outside fuel filters and
strainers to the inside
-Switching to #1 fuel oil
-Reducing the pour point of #2 fuel oil by blending it with #1 fuel oil
⩥ A fuel oil storage tank cannot be installed: Answer: In the furnace
room within 5 feet of the heating unit
⩥ the primary purpose of a fuel pump on a high pressure burner is to:
Answer: -Deliver oil at a constant and regulated pressure to the nozzle
-Move oil from the tank to the pump
-Provide a screen to filter the oil
⩥ If the vacuum reading is substantially above the calculated reading,
(with the burner running) the cause may be: Answer: All of the above -
plugged fuel filter, kinked oil supply line, check valve sticking
, ⩥ With most new flame retention burners, the motor speed is: Answer:
3450 rpm
⩥ To check for a proper nozzle line cut-off, the pressure gauge is
installed in the: Answer: Nozzle port
⩥ Fuel units are generally set at the factory at: Answer: 100 psi
⩥ the oil burner nozzle in a high pressure burner performs the following
functions: Answer: All of the above - atomizes the oil, provides a pattern
of oil spray, delivers a fixed amount of oil
⩥ the nozzle flow rate, spray angle and pattern are directly related to:
Answer: All of the above - tangential slots, swirl chamber, orifice
⩥ Cold oil or high viscosity problems may be eliminated by: Answer: A
& B - increasing pump pressure and reducing nozzle size & installing a
nozzle line pre-heater
⩥ the following conditions or elements affect choosing the correct
nozzle spray patterns: Answer: A&B - Air-oil mixing design of the
burner & Shape of the chamber
⩥ which condition affects nozzle spray droplet size? Answer: Fuel pump
pressure
