2025
Oil Burner's Licensing Test
Questions 1-200 – With 100%
Accurate Answers
Conceptial Research ||
, Oil Burner's Licensing Test Questions 1-
200 – With 100% Accurate Answers
The following conditions or elements affect choosing the correct nozzle spray pattern -
ANSWER - •Air-oil mixing design of burner
•. Shape of the chamber
Which condition affects nozzle spray droplet size? - ANSWER - Fuel Pump Pressure
To burn one pound of fuel oil, it takes how many pounds of air? - 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) - 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) - ANSWER - •Between 80
to 100 square inches
The most common type of burner design in use today is the - ANSWER - High pressure
atomizing
Poor draft due to a faulty chimney may be improved by installing a good - ANSWER -
•Draft inducer
The pressure differential produced by chimneys is best measured with a draft gauge in -
ANSWER - Inches of water column
The most important draft measurement to be taken on any oil-fired unit is - ANSWER -
The draft at the breech
The draft over the fire
The proper location to install a draft inducer is - ANSWER - •In the flue pipe between
the draft regulator and the chimney
Using combustion test instruments to measure the composition and temperature of the
flue gas as they leave the heating unit will indicate the - ANSWER - Steady state
efficiency
The holes that are provided in the flue pipe for combustion testing must be - ANSWER -
•Between the heating unit and the draft regulator
When using a pump type smoke tester, ten full strokes are necessary to - ANSWER -
•Draw the proper amount of flue gas past the paper
Oil Burner's Licensing Test
Questions 1-200 – With 100%
Accurate Answers
Conceptial Research ||
, Oil Burner's Licensing Test Questions 1-
200 – With 100% Accurate Answers
The following conditions or elements affect choosing the correct nozzle spray pattern -
ANSWER - •Air-oil mixing design of burner
•. Shape of the chamber
Which condition affects nozzle spray droplet size? - ANSWER - Fuel Pump Pressure
To burn one pound of fuel oil, it takes how many pounds of air? - 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) - 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) - ANSWER - •Between 80
to 100 square inches
The most common type of burner design in use today is the - ANSWER - High pressure
atomizing
Poor draft due to a faulty chimney may be improved by installing a good - ANSWER -
•Draft inducer
The pressure differential produced by chimneys is best measured with a draft gauge in -
ANSWER - Inches of water column
The most important draft measurement to be taken on any oil-fired unit is - ANSWER -
The draft at the breech
The draft over the fire
The proper location to install a draft inducer is - ANSWER - •In the flue pipe between
the draft regulator and the chimney
Using combustion test instruments to measure the composition and temperature of the
flue gas as they leave the heating unit will indicate the - ANSWER - Steady state
efficiency
The holes that are provided in the flue pipe for combustion testing must be - ANSWER -
•Between the heating unit and the draft regulator
When using a pump type smoke tester, ten full strokes are necessary to - ANSWER -
•Draw the proper amount of flue gas past the paper
