Massachusetts Oil burner Practice Exam With Questions And
Veried Answers Already Graded A 100 Percent Pass
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
Veried Answers Already Graded A 100 Percent Pass
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
