MASSACHUSETTS OIL BURNER LICENSE NEWEST 2024
ACTUAL EXAM TEST BANK 350 QUESTIONS AND CORRECT
DETAILED ANSWERS
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
Delayed opening oil valves are used to? - Answer>>Allow oil pump to come up to speed
If a steam boiler is to be installed with an automatic feeder it must also have: - Answer>>A backflow
prevention device
How can a damaged heat exchanger be detected on a forced warm air system? - Answer>>With a smoke
trace candle
If a high limit is installed to prevent high boiler water temperature, what is the function of the low limit? -
Answer>>To maintain temperature for domestic hot water
On a steam system, a plugged siphon loop can have what affect on the heating system? -
Answer>>Insufficient heat in the living space
On a triple acting aquastat a minimum of 20 degrees is recommend between the high and low limit, this
will prevent? - Answer>>The boiler going off on high limit before reaching the minimum circulator
temperature
An advantage of flame retention burner is - Answer>>Their high static pressure enables boilers and
furnaces with tighter more efficient heat exchange passages
The key final adjustment for most oil burners is - Answer>>Combustion air
Dirt or lint buildup in the bevel of the burner fan blades will - Answer>>Reduce the amount of
combustion air
ACTUAL EXAM TEST BANK 350 QUESTIONS AND CORRECT
DETAILED ANSWERS
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
Delayed opening oil valves are used to? - Answer>>Allow oil pump to come up to speed
If a steam boiler is to be installed with an automatic feeder it must also have: - Answer>>A backflow
prevention device
How can a damaged heat exchanger be detected on a forced warm air system? - Answer>>With a smoke
trace candle
If a high limit is installed to prevent high boiler water temperature, what is the function of the low limit? -
Answer>>To maintain temperature for domestic hot water
On a steam system, a plugged siphon loop can have what affect on the heating system? -
Answer>>Insufficient heat in the living space
On a triple acting aquastat a minimum of 20 degrees is recommend between the high and low limit, this
will prevent? - Answer>>The boiler going off on high limit before reaching the minimum circulator
temperature
An advantage of flame retention burner is - Answer>>Their high static pressure enables boilers and
furnaces with tighter more efficient heat exchange passages
The key final adjustment for most oil burners is - Answer>>Combustion air
Dirt or lint buildup in the bevel of the burner fan blades will - Answer>>Reduce the amount of
combustion air
