Oil burner License Study Guide ( Massachusetts
- 2024-2025 Update with 100+ Questions and
Verified Correct Answers Guaranteed Success A boiler has been flooded by recent rain. What would be the most common problem for
a burner as a result - CORRECT ANSWER: Electrical damage
A high limit operates be sensing what in a hot water boiler? - CORRECT ANSWER:
Temperature
A hot water boiler is showing 12 psi, How far will it raise the water? - CORRECT
ANSWER: 28ft
A Hot Water Boiler needs a low water cut off if over 300,000 B.T.U's? - CORRECT
ANSWER: False
A hot water system where the t stat controls only the circulator and has no direct
connection to the burner is an integrated system - CORRECT ANSWER: False
A storage tank more then ________ capacity, other then an outside above ground tank!shall be filled only through a pipe which terminates outside the building - CORRECT
ANSWER: 60 Gallons
A typical residential oil burner is also s/u to run Kerosene True? Or False? - CORRECT
ANSWER: False
After a Thermostat has been installed what should be checked? - CORRECT
ANSWER: Level, Heat Anticipator, Calibration
After installing a new steam boiler there is oil mixed with water what do you do? -
CORRECT ANSWER: You skim the water in the boiler
Air trapped in the nozzle line can cause what? - CORRECT ANSWER: Smokey after
drip
All hot water boilers must use what to control expansion. - CORRECT ANSWER:
Expansion tank
An oil burner tank must be how many feet minimum from an oil burner? - CORRECT
ANSWER: 5 Feet Minimum
At what height ceiling would a second thermal switch be required? - CORRECT
ANSWER: 12'
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Before installing a new nozzle you should what? - CORRECT ANSWER: Flush out
connector line.
Can material other then steel be used for construction of a light fuel oil tank? -
CORRECT ANSWER: Yes if Approved
Carbon monoxide is a result of what? - CORRECT ANSWER: Incomplete combustion
Draft measurements are taken in what? - CORRECT ANSWER: Inches of water
column
Electrical energy is supplied to this device so it perform curtain functions - CORRECT
ANSWER: Load
Give 2 reasons why draft is necessary? - CORRECT ANSWER: Remove flu gasses & efficiency.
Give two reasons for a high stack temperature? - CORRECT ANSWER: To much air or
sooted boiler
High limit on a burner circuit is wired - CORRECT ANSWER: Line voltage in series acting directly on the primary
How is a stack switch put "in step" ? - CORRECT ANSWER: Pull out clutch arm a half inch or so and release slowly. This aligns operating contacts. Cold contacts will close and hot contacts will open.
How is an electrical solenoid valve wired and where is it installed? - CORRECT
ANSWER: Wired in parallel & installed to the motor
How long after the completion of an installation must a certificate of completion be
submitted? - CORRECT ANSWER: Within 72 hours
How many BTU's in a Gallon of #2 fuel oil? - CORRECT ANSWER: 140,000 Btu's
How many cubic feet of Air is required for a 1 gallon nozzle? - CORRECT ANSWER:
1,400
How much air is needed in a confined space? - CORRECT ANSWER: 50 cubic feet per
1,000 BTU's
How would you test the safety timing on a stack switch? - CORRECT ANSWER:
Disconnect T 3
If a power vent fails to start or shuts down during operation, will this affect the burner?
Yes? Or No? - CORRECT ANSWER: Yes
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