Massachusetts Oil burner Practice Questions with Complete Solutions

Massachusetts Oil burner Practice Questions with Complete Solutions The cross connection between two supply tanks shall not exceed? 660 gallons When is an automatic draft control not required? When the equipment is designed to control the draft. Combustion performance testing can indicate: 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: Sufficient draft is available for safe operation of all connected equipment. Delayed ignition can be caused by: Weak ignition transformer You should replace the oil burner nozzle with: The manufacturers recommended nozzle spray pattern and spray angle. Viscosity problems can be corrected by: Decreasing the nozzle size and increasing the pump pressure accordingly The minimum operating pressure of an oil pump is: 100 PSI If a stack relay fails you, must? Replace it with an approved type controller Aquastats are normally found on what type of heating systems? Hydronic Airstats are found on what type of heating systems? Forced warm air systems Under sized returns on a warm air system can result in what? Short cycling of the oil burner Incorrect nozzle selection in regards to gallon per hour, can result in what problems in a steam system? Some radiators not heating quickly enough Low boiler water temperature in a hydronic hot water system may be caused by? Undersized oil burner nozzles Delayed opening oil valves are used to? Allow oil pump to come up to speed If a steam boiler is to be installed with an automatic feeder it must also have: A backflow prevention device How can a damaged heat exchanger be detected on a forced warm air system? 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? To maintain temperature for domestic hot water On a steam system, a plugged siphon loop can have what affect on the heating system? 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? The boiler going off on high limit before reaching the minimum circulator temperature An advantage of flame retention burner is Their high static pressure enables boilers and furnaces with tighter more efficient heat exchange passages The key final adjustment for most oil burners is Combustion air Dirt or lint buildup in the bevel of the burner fan blades will Reduce the amount of combustion air To change the air ratio for different firing rates with an adjustable head burner you Adjust the position of the drawer assembly in the Air tube All petroleum products are chemical compounds