Massachusetts Oil burner Practice Exam Questions & Answers 100% Verified

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