Massachusetts Oil burner Practice Exam Questions and Answers (Graded A)

Massachusetts Oil burner Practice Exam Questions and Answers (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 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 tempera