OIL BURNER'S TEST QUESTIONS 1-200 QUESTIONS
AND CORRECT ANSWERS VERIFIED LATEST 2023-
2024 GRADE A +
In an electric circuit for the wattage to remain the same if the
voltage drops, the amperage must - CORRECT ANSWER
>>Increase
Atomizing type burners were designed to burn which type of fuel -
CORRECT ANSWER >>Type 2 fuel oil
Pour point problems with outside above ground fuel tanks can be
partially relieved by - CORRECT ANSWER >>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 - CORRECT ANSWER
>>In the furnace room with 5' of heating unit.
The primary purpose of a fuel pump on a high-pressure burner is
to - CORRECT ANSWER >>Deliver oil at a constant and
regulated pressure to the nozzle
,If the vacuum reading is substantially above the calculated
reading, (with the burner running) the cause may be - CORRECT
ANSWER >>Plugged fuel filter, Kinked oil supply line, Check
valve sticking
With most new flame retention burners, the motor speed is -
CORRECT ANSWER >>3450
To check for proper nozzle line cut-off, the pressure gauge is
installed in the - CORRECT ANSWER >>Nozzle Port
Fuel units are generally set at the factory at - CORRECT
ANSWER >>100psi
The oil burner nozzle in a high-pressure burner performs the
following functions - CORRECT ANSWER >>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 - CORRECT ANSWER >>•Tangential slots
. Swirl chamber
Orifice
,Cold oil or high viscosity problems may be eliminated by -
CORRECT ANSWER >>•Increasing pump pressure and reducing
nozzle size
• Installing a nozzle line pre-heater
The following conditions or elements affect choosing the correct
nozzle spray pattern - CORRECT ANSWER >>•Air-oil mixing
design of burner
•. Shape of the chamber
Which condition affects nozzle spray droplet size? - CORRECT
ANSWER >>Fuel Pump Pressure
To burn one pound of fuel oil, it takes how many pounds of air? -
CORRECT ANSWER >>•14.4 lbs.
A layer of soot 1/16" thick will increase fuel consumption by (Fuel
consumption increase by 2 % for each 1/32 of soot) - CORRECT
ANSWER >>8%
When sizing a combustion chamber for a firing rate of 1.00 gph
you should provide a minimum floor space of (•20 square inches
, per 0.25 of GPH) - CORRECT ANSWER >>•Between 80 to 100
square inches
The most common type of burner design in use today is the -
CORRECT ANSWER >>High pressure atomizing
Poor draft due to a faulty chimney may be improved by installing a
good - CORRECT ANSWER >>•Draft inducer
The pressure differential produced by chimneys is best measured
with a draft gauge in - CORRECT ANSWER >>Inches of water
column
The most important draft measurement to be taken on any oil-
fired unit is - CORRECT ANSWER >>The draft at the breech
The draft over the fire
The proper location to install a draft inducer is - CORRECT
ANSWER >>•In the flue pipe between the draft regulator and the
chimney
AND CORRECT ANSWERS VERIFIED LATEST 2023-
2024 GRADE A +
In an electric circuit for the wattage to remain the same if the
voltage drops, the amperage must - CORRECT ANSWER
>>Increase
Atomizing type burners were designed to burn which type of fuel -
CORRECT ANSWER >>Type 2 fuel oil
Pour point problems with outside above ground fuel tanks can be
partially relieved by - CORRECT ANSWER >>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 - CORRECT ANSWER
>>In the furnace room with 5' of heating unit.
The primary purpose of a fuel pump on a high-pressure burner is
to - CORRECT ANSWER >>Deliver oil at a constant and
regulated pressure to the nozzle
,If the vacuum reading is substantially above the calculated
reading, (with the burner running) the cause may be - CORRECT
ANSWER >>Plugged fuel filter, Kinked oil supply line, Check
valve sticking
With most new flame retention burners, the motor speed is -
CORRECT ANSWER >>3450
To check for proper nozzle line cut-off, the pressure gauge is
installed in the - CORRECT ANSWER >>Nozzle Port
Fuel units are generally set at the factory at - CORRECT
ANSWER >>100psi
The oil burner nozzle in a high-pressure burner performs the
following functions - CORRECT ANSWER >>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 - CORRECT ANSWER >>•Tangential slots
. Swirl chamber
Orifice
,Cold oil or high viscosity problems may be eliminated by -
CORRECT ANSWER >>•Increasing pump pressure and reducing
nozzle size
• Installing a nozzle line pre-heater
The following conditions or elements affect choosing the correct
nozzle spray pattern - CORRECT ANSWER >>•Air-oil mixing
design of burner
•. Shape of the chamber
Which condition affects nozzle spray droplet size? - CORRECT
ANSWER >>Fuel Pump Pressure
To burn one pound of fuel oil, it takes how many pounds of air? -
CORRECT ANSWER >>•14.4 lbs.
A layer of soot 1/16" thick will increase fuel consumption by (Fuel
consumption increase by 2 % for each 1/32 of soot) - CORRECT
ANSWER >>8%
When sizing a combustion chamber for a firing rate of 1.00 gph
you should provide a minimum floor space of (•20 square inches
, per 0.25 of GPH) - CORRECT ANSWER >>•Between 80 to 100
square inches
The most common type of burner design in use today is the -
CORRECT ANSWER >>High pressure atomizing
Poor draft due to a faulty chimney may be improved by installing a
good - CORRECT ANSWER >>•Draft inducer
The pressure differential produced by chimneys is best measured
with a draft gauge in - CORRECT ANSWER >>Inches of water
column
The most important draft measurement to be taken on any oil-
fired unit is - CORRECT ANSWER >>The draft at the breech
The draft over the fire
The proper location to install a draft inducer is - CORRECT
ANSWER >>•In the flue pipe between the draft regulator and the
chimney
