5/3/25, 11:01 AM Oil Burner License
MASSACHUSETTS OIL BURNER LICENSE NEWEST 2025 ACTUAL
EXAM TEST BANK QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
-Atomizes the oil
The oil burner nozzle in a
-Provides a pattern of oil spray
high pressure burner
-Delivers a fixed amount of oil
performs the following
functions:
-Tangential slots
The nozzle flow rate, spray
-Swirl chamber
angle and pattern are
-Orifice
directly related to:
Cold oil or high viscosity -Increasing the pump pressure and reducing the nozzle size
problems may be -Installing a nozzle line pre-heater
eliminated by:
The following conditions or -Air-oil mixing design of the burner
elements affect choosing the -Shape of the chamber
correct nozzle spray patterns:
Which condition affects Fuel pump pressure
nozzle spray droplet size?
To burn one pound of fuel 14.4 lbs
oil, how many pounds of
air does it take?
A layer of soot 1/16" thick 4%
will increase fuel
consumption by:
When sizing a combustion Between 80 to 100 square inches
chamber for a
firing rate of 1.00 gph, you
should provide a minimum
/ 1/25
,5/3/25, 11:01 AM Oil Burner License
floor space of:
The most common type of High pressure atomizing
burner design today is the:
Poor draft due to a faulty Draft inducer
chimney may be improved
by installing a good:
The draft differential Inches of water column
produced by chimneys is
best measured with a draft
gauge in:
The most important draft -The draft at the breach
measurement to be taken -The draft over the fire
on any oil-fired unit is:
The proper location to install In the flue pipe between the draft regulator and the chimney
a draft inducer is:
Using combustion test Steady state efficiency
instruments to
measure the composition
and temperature of the flue
gas as they leave the
heating
unit will indicate the:
The holes that are provided Between the heating unit and the draft regulator
in the flue pipe for
combustion testing must
be:
When using a pump type Draw the proper amount of fluegas past the paper
smoke tester, 10 full
strokes are necessary to:
The fluid in a CO2 tester is For about 200 tests
good for how many tests?
In an electric circuit in order Increase
for the
wattage to remain the
same if the voltage drops,
/ 2/25
, 5/3/25, 11:01 AM Oil Burner License
the amperage must:
When applying current -Solenoid valve
through a -Relay
conductor that is wound in a -Electric motor
coil the
magnetic lines of force
created are used in
If in an average 15 amp Use an amp meter to check out the system
residential heating circuit,
the fuse occasionally
blows, you
should:
To determine the "electrical Voltmeter
potential"
available at any given point
in a circuit you should use
a:
Burner ignition systems 120 V
normally operate at what
primary voltage?
Burner ignition transformers 10,000 to 14,000 V
operate at what secondary
voltage range?
In which type of systems Intermittent
does the ignition
transformer stay on for
the full time the
burner is running?
A typical ignition Step-up
transformer is of what
type?
During a normal start-up, -The motor will not start
when current is applied to a -The primary control will time out and trip on safety
split phase burner motor
with an open centrifugal
switch:
The __ switch opens when the Centrifugal
motor has
/ 3/25
MASSACHUSETTS OIL BURNER LICENSE NEWEST 2025 ACTUAL
EXAM TEST BANK QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
-Atomizes the oil
The oil burner nozzle in a
-Provides a pattern of oil spray
high pressure burner
-Delivers a fixed amount of oil
performs the following
functions:
-Tangential slots
The nozzle flow rate, spray
-Swirl chamber
angle and pattern are
-Orifice
directly related to:
Cold oil or high viscosity -Increasing the pump pressure and reducing the nozzle size
problems may be -Installing a nozzle line pre-heater
eliminated by:
The following conditions or -Air-oil mixing design of the burner
elements affect choosing the -Shape of the chamber
correct nozzle spray patterns:
Which condition affects Fuel pump pressure
nozzle spray droplet size?
To burn one pound of fuel 14.4 lbs
oil, how many pounds of
air does it take?
A layer of soot 1/16" thick 4%
will increase fuel
consumption by:
When sizing a combustion Between 80 to 100 square inches
chamber for a
firing rate of 1.00 gph, you
should provide a minimum
/ 1/25
,5/3/25, 11:01 AM Oil Burner License
floor space of:
The most common type of High pressure atomizing
burner design today is the:
Poor draft due to a faulty Draft inducer
chimney may be improved
by installing a good:
The draft differential Inches of water column
produced by chimneys is
best measured with a draft
gauge in:
The most important draft -The draft at the breach
measurement to be taken -The draft over the fire
on any oil-fired unit is:
The proper location to install In the flue pipe between the draft regulator and the chimney
a draft inducer is:
Using combustion test Steady state efficiency
instruments to
measure the composition
and temperature of the flue
gas as they leave the
heating
unit will indicate the:
The holes that are provided Between the heating unit and the draft regulator
in the flue pipe for
combustion testing must
be:
When using a pump type Draw the proper amount of fluegas past the paper
smoke tester, 10 full
strokes are necessary to:
The fluid in a CO2 tester is For about 200 tests
good for how many tests?
In an electric circuit in order Increase
for the
wattage to remain the
same if the voltage drops,
/ 2/25
, 5/3/25, 11:01 AM Oil Burner License
the amperage must:
When applying current -Solenoid valve
through a -Relay
conductor that is wound in a -Electric motor
coil the
magnetic lines of force
created are used in
If in an average 15 amp Use an amp meter to check out the system
residential heating circuit,
the fuse occasionally
blows, you
should:
To determine the "electrical Voltmeter
potential"
available at any given point
in a circuit you should use
a:
Burner ignition systems 120 V
normally operate at what
primary voltage?
Burner ignition transformers 10,000 to 14,000 V
operate at what secondary
voltage range?
In which type of systems Intermittent
does the ignition
transformer stay on for
the full time the
burner is running?
A typical ignition Step-up
transformer is of what
type?
During a normal start-up, -The motor will not start
when current is applied to a -The primary control will time out and trip on safety
split phase burner motor
with an open centrifugal
switch:
The __ switch opens when the Centrifugal
motor has
/ 3/25
