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MASSACHUSETTS OIL BURNER LICENSE EXAM 2024 ACTUAL EXAM 2 VERSIONS (VERSION A AND B) COMPLETE ACCURATE EXAM QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS)/ALREADY GRADED A+$18.29
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MASSACHUSETTS OIL BURNER LICENSE EXAM 2024 ACTUAL EXAM 2 VERSIONS (VERSION A AND B) COMPLETE ACCURATE EXAM QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS)/ALREADY GRADED A+
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MASSACHUSETTS OIL BURNER LICENSE
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MASSACHUSETTS OIL BURNER LICENSE
MASSACHUSETTS OIL BURNER LICENSE EXAM
2024 ACTUAL EXAM 2 VERSIONS (VERSION A
AND B) COMPLETE ACCURATE EXAM
QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT
ANSWERS)/ALREADY GRADED A+
MASSACHUSETTS OIL BURNER LICENSE EXAM
2024 ACTUAL EXAM 2 VERSIONS (VERSION A
AND B) COMPLETE ACCURATE EXAM
QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT
ANSWERS)/ALREADY GRADED A+
What are the possible causes of soot at or near the
power venter? - ....ANSWER...Incomplete combustion
What is a possible side effect of air in a nozzle line?
- ....ANSWER...Soot
What is the cause if the cad cell is tripped on safety?
- ....ANSWER...Dirty cad cell
Faulty cad cell
No flame present
,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, 10 full
strokes are necessary to: - ....ANSWER...Draw the
proper amount of fluegas past the paper
The fluid in a CO2 tester is good for how many tests?
- ....ANSWER...For about 200 tests
In an electric circuit in order for the wattage to
remain the same if the voltage drops, the amperage
must: - ....ANSWER...Increase
When applying current through a conductor that is
wound in a coil the magnetic lines of force created
are used in - ....ANSWER...-Solenoid valve
-Relay
-Electric motor
If in an average 15 amp residential heating circuit,
the fuse occasionally blows, you should: -
,....ANSWER...Use an amp meter to check out the
system
To determine the "electrical potential" available at
any given point in a circuit you should use a: -
....ANSWER...Voltmeter
Burner ignition systems normally operate at what
primary voltage? - ....ANSWER...120 V
Burner ignition transformers operate at what
secondary voltage range? - ....ANSWER...10,000 to
14,000 V
In which type of systems does the ignition
transformer stay on for the full time the burner is
running? - ....ANSWER...Intermittent
A typical ignition transformer is of what type? -
....ANSWER...Step-up
During a normal start-up, when current is applied to
a split phase burner motor with an open centrifugal
switch: - ....ANSWER...-The motor will not start
, -The primary control will time out and trip on safety
The _______ switch opens when the motor has almost
reached full speed - ....ANSWER...Centrifugal
The most popular speed (S) used in American made
burners are: - ....ANSWER...-1725 rpm
-3450 rpm
Because burner fans have beveled blades any dirt or
lint in the blade will: - ....ANSWER...Reduce the
amount of air for combustion
The fan limit control on a warm air unit is used to: -
....ANSWER...-Shut off the burner at a predetermined
temperature
-Start the blower at a predetermined temperature
-Stop the blower at a predetermined temperature
In all residential oil heating systems, the high limit
control must be: - ....ANSWER...Line voltage and
wired in series with the primary control
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