MASSACHUSETTS OIL BURNER EXAM QUESTIONS WITH CORRECT ANSWERS LATEST UPDATED 2024/2025 GRADED A+. The cross connection between two supply tanks shall not exceed? - correct answer 660 gallons
When is an automatic draft control not required? - correct answer When the equipment is designed
to control...
The cross connection between two supply tanks shall not exceed? - correct answer ✔✔660 gallons When is an automatic draft control not required? - correct answer ✔✔When the equipment is designed to control the draft. Combustion performance testing can indicate: - correct 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: - correct answer ✔✔Sufficient draft is available for safe operation of all connected equipment. Delayed ignition can be caused by: - correct answer ✔✔Weak ignition transformer You should replace the oil burner nozzle with: - correct answer ✔✔The manufacturers recommended nozzle spray pattern and spray angle. Viscosity problems can be corrected by: - correct answer ✔✔Decreasing the nozzle size and increasing the pump pressure accordingly The minimum operating pressure of an oil pump is: - correct answer ✔✔100 PSI If a stack relay fails you, must? - correct answer ✔✔Replace it with an approved type controller Aquastats are normally found on what type of heating systems? - correct answer ✔✔Hydronic MASSACHUSETTS OIL BURNER EXAM QUESTIONS WITH CORRECT ANSWERS | UPDATED 2024/2025 | GRADED A+ Airstats are found on what type of heating systems? - correct answer ✔✔Forced warm air systems Under sized returns on a warm air system can result in what? - correct 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? - correct answer ✔✔Some radiators not heating quickly enough Low boiler water temperature in a hydronic hot water system may be caused by? - correct answer ✔✔Undersized oil burner nozzles Delayed opening oil valves are used to? - correct 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: - correct answer ✔✔A backflow prevention device How can a damaged heat exchanger be detected on a forced warm air system? - correct 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? - correct answer ✔✔To maintain temperature for domestic hot water On a steam system, a plugged siphon loop can have what affect on the heating system? - correct 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? - correct answer ✔✔The boiler going off on high limit before reaching the minimum circulator temperature An advantage of flame retention burner is - correct answer ✔✔Their high static pressure enables boilers and furnaces with tighter more efficient heat exchange passages
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