1|Page
OIL BURNER LICENSE EXAM AND PRACTICE EXAM
NEWEST ACTUAL VERIFIED EXAM COMPLETE 250
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED
A+||NEWEST EXAM!!
A single stationary conductor in the flux of a permanent
magnet will: - ANSWER--NOT induce a current flow in the
conductor
-NOT reverse the current flow in the conductor
-NOT increase the amperage in the conductor
When installing a power vent system: - ANSWER-Follow
the manufacturer's installation guide
To test a stack mounted primary control safety, you should:
- ANSWER-Remove the unit from the flue pipe
An advantage of power venting is: - ANSWER--Installing
an oil fired unit where there is no chimney
-More positive control of draft
-Lower cost of new homes
,2|Page
What is the approximate safety timing of stack mounted
primary controls? - ANSWER-60 to 90 days
The best way to adjust an oil burner is: - ANSWER-With
combustion test equipment
What is the correct procedure for performing a combustion
efficiency test? - ANSWER--Draft
-Smoke
-CO2
The temperature of fuel oil can affect: - ANSWER--Flow
rate
-Droplet size
-Soot formation
Which of the following does not affect draft? - ANSWER-
Boiler design
What does AFUE stand for? - ANSWER-Annual Fuel
Utilization Efficiency
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Which substance will cause the formation of sediment at
the bottom of a fuel storage tank? - ANSWER-Water
The function of the barometric draft regulator is to: -
ANSWER-Mix room air with combustion gasses in the
chimney
The droplet size of atomized fuel oil as pump pressure
increases: - ANSWER-Decreases
Which of those listed below are acceptable CO2 readings
for new modern equipment? - ANSWER-10 1/2% to 12
1/2%
What are the two things that must be mixed to have proper
combustion? - ANSWER--Fuel oil vapor
-Combustion air
What two major components make up fuel oil? -
ANSWER-Hydrogen and carbon
Increasing fuel pump pressure will _______ flow rate
through the nozzle. - ANSWER-Increase
, 4|Page
Incomplete combustion causes? - ANSWER--Soot and
smoke
-Poor efficiency
-Low CO2
One advantage to light weight combustion chambers is
they: - ANSWER-Cool down quickly
Flame retention oil burners do not depend as much on
_______ for good combustion as did older burners. -
ANSWER-Air
Breaking up oil into small droplets is called: - ANSWER-
Atomization
A simple, effective, yet inexpensive way to increase on-
cycle system efficiency is to: - ANSWER-Match the nozzle
to the heating load
The ______ are important for both on and off cycle
efficiency in a fire tube boiler. - ANSWER-Combustion
chambers
OIL BURNER LICENSE EXAM AND PRACTICE EXAM
NEWEST ACTUAL VERIFIED EXAM COMPLETE 250
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED
A+||NEWEST EXAM!!
A single stationary conductor in the flux of a permanent
magnet will: - ANSWER--NOT induce a current flow in the
conductor
-NOT reverse the current flow in the conductor
-NOT increase the amperage in the conductor
When installing a power vent system: - ANSWER-Follow
the manufacturer's installation guide
To test a stack mounted primary control safety, you should:
- ANSWER-Remove the unit from the flue pipe
An advantage of power venting is: - ANSWER--Installing
an oil fired unit where there is no chimney
-More positive control of draft
-Lower cost of new homes
,2|Page
What is the approximate safety timing of stack mounted
primary controls? - ANSWER-60 to 90 days
The best way to adjust an oil burner is: - ANSWER-With
combustion test equipment
What is the correct procedure for performing a combustion
efficiency test? - ANSWER--Draft
-Smoke
-CO2
The temperature of fuel oil can affect: - ANSWER--Flow
rate
-Droplet size
-Soot formation
Which of the following does not affect draft? - ANSWER-
Boiler design
What does AFUE stand for? - ANSWER-Annual Fuel
Utilization Efficiency
,3|Page
Which substance will cause the formation of sediment at
the bottom of a fuel storage tank? - ANSWER-Water
The function of the barometric draft regulator is to: -
ANSWER-Mix room air with combustion gasses in the
chimney
The droplet size of atomized fuel oil as pump pressure
increases: - ANSWER-Decreases
Which of those listed below are acceptable CO2 readings
for new modern equipment? - ANSWER-10 1/2% to 12
1/2%
What are the two things that must be mixed to have proper
combustion? - ANSWER--Fuel oil vapor
-Combustion air
What two major components make up fuel oil? -
ANSWER-Hydrogen and carbon
Increasing fuel pump pressure will _______ flow rate
through the nozzle. - ANSWER-Increase
, 4|Page
Incomplete combustion causes? - ANSWER--Soot and
smoke
-Poor efficiency
-Low CO2
One advantage to light weight combustion chambers is
they: - ANSWER-Cool down quickly
Flame retention oil burners do not depend as much on
_______ for good combustion as did older burners. -
ANSWER-Air
Breaking up oil into small droplets is called: - ANSWER-
Atomization
A simple, effective, yet inexpensive way to increase on-
cycle system efficiency is to: - ANSWER-Match the nozzle
to the heating load
The ______ are important for both on and off cycle
efficiency in a fire tube boiler. - ANSWER-Combustion
chambers
