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MASSACHUSETTS (MA STATE) OIL BURNER TECHNICIAN LICENSE EXAM AND STUDY GUIDE 2024/2025 NEWEST!! COMPLETE ACTUAL 432 EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) ALREADY GRADED A+.$25.49
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MASSACHUSETTS (MA STATE) OIL BURNER TECHNICIAN LICENSE EXAM AND STUDY GUIDE 2024/2025 NEWEST!! COMPLETE ACTUAL 432 EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) ALREADY GRADED A+.
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Course
MASSACHUSETTS OIL BURNER TECHNICIAN
Institution
MASSACHUSETTS OIL BURNER TECHNICIAN
MASSACHUSETTS (MA STATE) OIL BURNER TECHNICIAN
LICENSE EXAM AND STUDY GUIDE 2024/2025 NEWEST!! COMPLETE
ACTUAL 432 EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+.
MASSACHUSETTS (MA STATE) OIL BURNER TECHNICIAN
LICENSE EXAM AND STUDY GUIDE 2024/2025 NEWEST!! COMPL...
MASSACHUSETTS (MA STATE) OIL BURNER TECHNICIAN
LICENSE EXAM AND STUDY GUIDE 2024/2025 NEWEST!! COMPLETE
ACTUAL 432 EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+.
What does L1 mean in electrical wiring? - ANSWER-hot or line voltage
What does L2 mean in a 115 volt circuit? - ANSWER-neutral
How far must oil storage be from an electrical panel? - ANSWER-3 feet
What does the letter "N" mean? - ANSWER-Neutral
What color wire is used for L1? - ANSWER-Black
What color wire is used for L2? - ANSWER-White
What color wire is used for "N"? - ANSWER-White
What is the fuse size in an oil burner circuit? - ANSWER-15 amp
What size wire is used in an oil burner circuit? - ANSWER-14 gauge
What is a series circuit? - ANSWER-one path for electricity to follow
Define a parallel circuit? - ANSWER-more than one path for the
electricity to follow
,What is the limit device used in a steam system? - ANSWER-
Pressuretrol
Wire with green insulation is used for what? - ANSWER-grounding
A 15 amp electrical circuit cannot have a continuous load of more
than _______amps? - ANSWER-12 amps
What is a short circuit? - ANSWER-power back to source with no load
T/F Limit switches are wired using L2? - ANSWER-False
Can a thermal switch be wired on L2? - ANSWER-No
What is the purpose of a combustion chamber? - ANSWER-to hold
heat and improve combustion
What happens when an oil flame touches a cold surface? - ANSWER-
It causes impingement
What is draft? - ANSWER-air in motion
Why do we use a barometric damper? - ANSWER-to regulate the draft
and make it constant
,What is required on a unit with a power operated vent? - ANSWER-an
air proving switch
Air leaks in the combustion chamber will cause what? – ANSWER-
poor efficiency
What is the maximum safe CO reading indoors? - ANSWER-9 ppm
Sulfuric acid is created when the stack temp drops below
____________degrees F. - ANSWER-250 degrees
A burner connected to a chimney that has -.01 of draft when cold will
need to be fitted with a _________. - ANSWER-draft inducer
Will an increase in excess air lower or raise the stack temperature? -
ANSWER-raise it
Will an increase in excess air lower or raise the CO2 reading? -
ANSWER-lower it
What is a good CO2 reading in a boiler with a retention head burner? -
ANSWER-10-12% (11%)
A draft of -.03 to -.04"wc over the fire, and -.01 to -.02"wc at the breach
is considered good. - ANSWER-False: over the fire draft -.01"wc to -
.02"wc, at the breach -.04"wc
, Draft measurements are taken in... - ANSWER-inches of water column
What will happen if a power vent fails to start or shuts down during
operation? - ANSWER-Burner will lock out
What are the proper draft settings over the fire and at the breach
respectively? - ANSWER--.02 and -.04"wc
Per code, what three things are needed along with a power venter? -
ANSWER-proving switch, damper, post purge
How far off the ground should a power venter terminal be? (minimum
distance) - ANSWER-1 foot
How far horizontally from a door or window should a power venter
terminal be? (minimum distance) - ANSWER-4 feet
Name two types of natural draft. - ANSWER-thermal, currential
What determines the nozzle angle used? - ANSWER-burner air
pattern, chamber size and shape
What is the position of the blast tube in the chamber? - ANSWER-1/4"
behind chamber face
How must the blast tube be pitched? - ANSWER-down towards the
chamber
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