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Massachusetts Oil burner Practice Exam | Actual Questions and Answers Latest Updated 2024/, Exams of Electrical and Electronics Engineering

Tufts UniversityElectrical and Electronics Engineering

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

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2023/2024

Available from 09/07/2024

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Massachusetts Oil burner Practice Exam | Actual Questions and Answers
Latest Updated 2024/2025 (Graded A+)
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
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Download Massachusetts Oil burner Practice Exam | Actual Questions and Answers Latest Updated 2024/ and more Exams Electrical and Electronics Engineering in PDF only on Docsity!

Massachusetts Oil burner Practice Exam | Actual Questions and Answers

Latest Updated 2024/2025 (Graded A+)

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

When installing an oil tank be sure: - ✔✔The fill and vent lines are pitched towards the tank, to install a vent alarm and a tank gauge, and to install an oil filter Oil lines buried in concrete should be - ✔✔Sleeved in plastic or PVC pipe with no fittings below the floor Fuel units (oil pumps) preform the following functions - ✔✔Move oil from the tank to the burner and deliver oil at a constant regulated pressure to the nozzle The best way to clear a clogged oil line is to - ✔✔Use a hand pump to pull the blockage out If the oil level in the tank is 4 feet below the fuel unit in 10 feet away, the approximate vacuum should be - ✔✔ 5 - 6 inches If the operating vacuum reading a significantly above the calculated vacuum, you probably have a - ✔✔Clogged oil filter If the operating vacuum reading is significantly less than the calculated vacuum, you probably have a - ✔✔Suction line leak It is best to connect your unit as a one pipe system instead of a 2 pipe system because - ✔✔One pipe leads to longer filter life and eliminates worries about leaking return lines A fuel de-aerator: - ✔✔Eliminates the need for a return line back to the tank A cause of pulsating oil pump pressure and a pulsating fire is - ✔✔Air leaks in the suction line Increasing the fuel pump pressure will - ✔✔Increase the flow rate The purpose of an oil burner nozzle is to - ✔✔Automize the oil, provide a pattern of oil spray, and meter the amount of oil burned

When replacing nozzle - ✔✔Follow the manufacturer's recommendations To reduce combustion problems caused by cold oil - ✔✔Increase the pump pressure, install a nozzle line pre-heater, and use additives or kerosene to lower viscosity Nozzle after trip can be caused by - ✔✔a defective pressure regulating valve, air in the nozzle line, and oil expansion in the nozzle after shut down The flow rate stamped on the nozzle is based on: - ✔✔100 PSI A proper combustion chamber: - ✔✔Is large enough so the fire doesn't touch (impinge on) any surface, reflects heat back into the fire, and is made of material (like ceramic) that heats up quickly and cools off quickly Too much draft over the fire can occur when - ✔✔There are leaks between the sections of the boiler that let basement air into the heat exchanger