Massachusetts Oil burner Practice Exam And Actual Answers 2024.

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