OIL BURNERS EXAM PRACTICE QUESTIONS
WITH DETAILED EXPLANATIONS 2026
◉ Pour point problems with outside above ground fuel tanks can be
partially relieved by:
Answer: All of the above - relocating the outside fuel filter and
strainers to the inside , switching to No. 1 fuel oil, reducing the pour
point of No. 2 fuel oil by blending it with No. 1 fuel oil
◉ A fuel oil storage tank cannot be installed:
Answer: In the furnace room with 5' of heating unit
◉ The primary purpose of a fuel pump on a high pressure burner is
to:
Answer: All of the above - 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 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: Increasing pump pressure and reducing nozzle size &
installing a nozzle line pre-heater
WITH DETAILED EXPLANATIONS 2026
◉ Pour point problems with outside above ground fuel tanks can be
partially relieved by:
Answer: All of the above - relocating the outside fuel filter and
strainers to the inside , switching to No. 1 fuel oil, reducing the pour
point of No. 2 fuel oil by blending it with No. 1 fuel oil
◉ A fuel oil storage tank cannot be installed:
Answer: In the furnace room with 5' of heating unit
◉ The primary purpose of a fuel pump on a high pressure burner is
to:
Answer: All of the above - 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 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: Increasing pump pressure and reducing nozzle size &
installing a nozzle line pre-heater
