Massachusetts Oil burner Practice 100% Accurate!

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