MASSACHUSETTS OIL BURNER EXAM ACTUAL EXAM VERSION
1,2 AND STUDY GUIDE COMPLETE 450 QUESTIONS AND
CORRECT ANSWERS LATEST VERSIONS 2024-2025
VERSION 1
What must be done prior to installing an oil burner - ANSWER✔✔One must get a
permit before installing an oil burner
What are the four no heat call steps - ANSWER✔✔#1Oil check#2 fuse breaker#3
emergency switch#4 power
What are the requirements for oil fuel vent pipes that terminate outside of the
building - ANSWER✔✔No openings within two feet of vent
What is the safety timing of a gas pilot ignition - ANSWER✔✔15 seconds or less
What must be done to install an additional fuel tank in a building that already has
a tank holding 1320 gallons - ANSWER✔✔They must have a firewall around them
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What must be done with the bypass plug on a two pipe system and on a one pipe
system - ANSWER✔✔On a one pipe system. the bypass plug must be removed .on
a two pipe system the bypass must be installed.
What is a bypass plug - ANSWER✔✔A 1/16 inch plug to convert 1 pipe to a 2 pipe
system
What is a power burner - ANSWER✔✔Anything that's not a vaporizing oil burner
Can a series 10 .3 wire thermostat be used with a 2-wire control? explain. -
ANSWER✔✔Yes by jumping out the ground
Can a series 80 dryer thermostat be wired into a 3-wire control - ANSWER✔✔No
What is the greatest loss in a boiler - ANSWER✔✔Heat loss through the chimney
How high on the wall should thermostat be installed - ANSWER✔✔5 feet from the
ground
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What must be checked while installing a Mercury bulb thermostat -
ANSWER✔✔Must be checked to be level
Why are low voltage thermostats use more than line voltage ones -
ANSWER✔✔Safety
What additional requirements are there for installing two or more tanks to a
common discharge line - ANSWER✔✔They must be on a common slab at the
same height and secure to one another
6 oil burners have been installed in a large room which is of tight construction and
which must be kept closed at all times there is decidedly not enough combustion
air for proper burner operation there burner sizes are 1.35 gallons per hour under
these conditions what is the minimum free area of an opening connecting to the
outdoors which must be provided - ANSWER✔✔567 inch by 2 inch vent going to
outside
what is the maximum voltage allowed for an oil burner circuit - ANSWER✔✔150
volts
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Is carbon monoxide a desirable element in flue gases - ANSWER✔✔No
How much air is needed to burn a gallon of fuel oil and why - ANSWER✔✔14.4
plus 50% 192 feet cubed 154 CF to ensure enough oxygen
When visually adjusting the flame on an oil burner you should try to get -
ANSWER✔✔An orange flame with red Flame tips
Explain how a burner should be piped when the supply tank is located below the
burner - ANSWER✔✔2. Pipe dual stage with a bypass plug
How should a stack switch be installed according to 527 CMR 4.00 -
ANSWER✔✔With a flexible conduit
Why should a stack switch not be rigidly mounted - ANSWER✔✔So you can pull it
out and check it
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