MASSACHUSETTS OIL BURNER LICENSE NEWEST 2024
ACTUAL EXAM TEST BANK 350 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |
ALREADY GRADED A+
The cross connection between two supply tanks shall not exceed? - ANSWER: 660
gallons
When is an automatic draft control not required? - ANSWER: When the equipment is
designed to control the draft.
Combustion performance testing can indicate: - ANSWER: Improper air oil mixture,
too much combustion air, and low pump pressure.
If a second oil-burning appliance is installed in a single chimney, you must insure: -
ANSWER: Sufficient draft is available for safe operation of all connected equipment.
Delayed ignition can be caused by: - ANSWER: Weak ignition transformer
You should replace the oil burner nozzle with: - ANSWER: The manufacturers
recommended nozzle spray pattern and spray angle.
Viscosity problems can be corrected by: - ANSWER: Decreasing the nozzle size and
increasing the pump pressure accordingly
The minimum operating pressure of an oil pump is: - ANSWER: 100 PSI
If a stack relay fails you, must? - ANSWER: Replace it with an approved type
controller
Aquastats are normally found on what type of heating systems? - ANSWER: Hydronic
Airstats are found on what type of heating systems? - ANSWER: Forced warm air
systems
Under sized returns on a warm air system can result in what? - ANSWER: Short
cycling of the oil burner
Incorrect nozzle selection in regards to gallon per hour, can result in what problems
in a steam system? - ANSWER: Some radiators not heating quickly enough
Low boiler water temperature in a hydronic hot water system may be caused by? -
ANSWER: Undersized oil burner nozzles
ACTUAL EXAM TEST BANK 350 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |
ALREADY GRADED A+
The cross connection between two supply tanks shall not exceed? - ANSWER: 660
gallons
When is an automatic draft control not required? - ANSWER: When the equipment is
designed to control the draft.
Combustion performance testing can indicate: - ANSWER: Improper air oil mixture,
too much combustion air, and low pump pressure.
If a second oil-burning appliance is installed in a single chimney, you must insure: -
ANSWER: Sufficient draft is available for safe operation of all connected equipment.
Delayed ignition can be caused by: - ANSWER: Weak ignition transformer
You should replace the oil burner nozzle with: - ANSWER: The manufacturers
recommended nozzle spray pattern and spray angle.
Viscosity problems can be corrected by: - ANSWER: Decreasing the nozzle size and
increasing the pump pressure accordingly
The minimum operating pressure of an oil pump is: - ANSWER: 100 PSI
If a stack relay fails you, must? - ANSWER: Replace it with an approved type
controller
Aquastats are normally found on what type of heating systems? - ANSWER: Hydronic
Airstats are found on what type of heating systems? - ANSWER: Forced warm air
systems
Under sized returns on a warm air system can result in what? - ANSWER: Short
cycling of the oil burner
Incorrect nozzle selection in regards to gallon per hour, can result in what problems
in a steam system? - ANSWER: Some radiators not heating quickly enough
Low boiler water temperature in a hydronic hot water system may be caused by? -
ANSWER: Undersized oil burner nozzles
