MASSACHUSETTS OIL BURNER
PRACTICE EXAM QUESTIONS &
VERIFIED CORRECT ANSWERS
PASSED
When is an automatic draft control not required? - CORRECT ANSWER When the
equipment is designed to control the draft.
Combustion performance testing can indicate: - CORRECT 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: -
CORRECT ANSWER Sufficient draft is available for safe operation of all connected
equipment.
Delayed ignition can be caused by: - CORRECT ANSWER Weak ignition transformer
You should replace the oil burner nozzle with: - CORRECT ANSWER The
manufacturers recommended nozzle spray pattern and spray angle.
Viscosity problems can be corrected by: - CORRECT ANSWER Decreasing the nozzle
size and increasing the pump pressure accordingly
The minimum operating pressure of an oil pump is: - CORRECT ANSWER 100 PSI
The cross connection between two supply tanks shall not exceed? - CORRECT
ANSWER 660 gallons
If a stack relay fails you, must? - CORRECT ANSWER Replace it with an approved
type controller
Aquastats are normally found on what type of heating systems? - CORRECT ANSWER
Hydronic
Airstats are found on what type of heating systems? - CORRECT ANSWER Forced
warm air systems
Under sized returns on a warm air system can result in what? - CORRECT ANSWER
Short cycling of the oil burner
PRACTICE EXAM QUESTIONS &
VERIFIED CORRECT ANSWERS
PASSED
When is an automatic draft control not required? - CORRECT ANSWER When the
equipment is designed to control the draft.
Combustion performance testing can indicate: - CORRECT 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: -
CORRECT ANSWER Sufficient draft is available for safe operation of all connected
equipment.
Delayed ignition can be caused by: - CORRECT ANSWER Weak ignition transformer
You should replace the oil burner nozzle with: - CORRECT ANSWER The
manufacturers recommended nozzle spray pattern and spray angle.
Viscosity problems can be corrected by: - CORRECT ANSWER Decreasing the nozzle
size and increasing the pump pressure accordingly
The minimum operating pressure of an oil pump is: - CORRECT ANSWER 100 PSI
The cross connection between two supply tanks shall not exceed? - CORRECT
ANSWER 660 gallons
If a stack relay fails you, must? - CORRECT ANSWER Replace it with an approved
type controller
Aquastats are normally found on what type of heating systems? - CORRECT ANSWER
Hydronic
Airstats are found on what type of heating systems? - CORRECT ANSWER Forced
warm air systems
Under sized returns on a warm air system can result in what? - CORRECT ANSWER
Short cycling of the oil burner
