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Massachusetts Oil burner Practice 100% Correct
Solutions Latest Update
Flashpoint of a fuel is an indication of - ANSWER The lowest temperature the fuel willflash but not continue to burn
The pour point of #2 oil - ANSWER Can be lowered by blending with kerosene, can belowered with fuel additives, and is the lowest temperature it will flow
Maximum fuel allowed without a license - ANSWER 10,000 gallons Is heating oil gets colder its viscosity: - ANSWER Increases Sulfuric acid in combustion gases can: - ANSWER Damon's the flue lines, it holds in theflue pipe, and create a scale buildup in the heat exchanger
Home for bacterial growth and sludge in the bottom of the oil tank: - ANSWER Water To ensure clean, uncontaminated fuel reaches the oil burner you must - ANSWER Installtanks properly, regularly inspect and fix minor defects before they lead to major problems, and install a quality oil filter Water in oil tanks come from - ANSWER Condensation, loose or missing fill and ventcaps, and failing to drain water from a tank before installation
When installing an oil tank be sure: - ANSWER The fill and vent lines are pitched towardsthe tank, a vent alarm and a tank gauge is installed along with an oil filter installation
Oil lines buried in concrete must be - ANSWER sleeved in plastic or PVC pipe and nothave any fittings below the floor
Fuel units-oil pumps-perform the following functions - ANSWER Transfer oil from thetank to the burner and deliver oil at a constant regulated pressure to the nozzle
The best way to extract clog blockage from an oil line clog is to - ANSWER Suction ahand pump to draw the blockage out
If the oil level in the tank is 4 feet below the fuel unit in 10 feet away, the approximatevacuum should be - ANSWER 5 - 6 inches
If the operating vacuum reading a significantly above the calculated vacuum, youprobably have a - ANSWER Clogged oil filter
If the operating vacuum reading is significantly less than the calculated vacuum, youprobably have a - ANSWER Suction line leak
It is best to connect your unit as a one pipe system instead of a 2 pipe system because -ANSWER One pipe leads to longer filter life and eliminates worries about leaking return lines A fuel de-aerator: - ANSWER Eliminates the need for a return line back to the tank A cause of pulsating oil pump pressure and a pulsating fire is - ANSWER Air leaks in thesuction line
Increasing the fuel pump pressure will - ANSWER Increase the flow rate The function of an oil burner nozzle is to - ANSWER Automize the oil, provide a pattern ofoil spray and to meter the amount of oil burned
Delayed ignition can be caused by: - ANSWER Weak ignition transformer You should replace the oil burner nozzle with: - ANSWER The manufacturersrecommended nozzle spray pattern and spray angle.
Viscosity problems can be corrected by: - ANSWER Decreasing the nozzle size andincreasing 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 airsystems
Under sized returns on a warm air system can result in what? - ANSWER Short cyclingof the oil burner
Incorrect nozzle selection in regards to gallon per hour, can result in what problems in asteam 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 Allowing the oil pump to come up tospeed
If a steam boiler is to be installed with an automatic feeder it must also have: - ANSWER
A backflow prevention device How can a defective heat exchanger be located on a forced warm air system? -ANSWER By using a smoke trace candle
If an installed high limit ensures that the boiler water temperature cannot become toohigh, what is a function of the low limit? - ANSWER To hold temperature for domestic hot water On a steam system, a plugged siphon loop can have what affect on the heating system? -ANSWER Insufficient heat in the living space
On a triple acting aquastat a minimum of 20 degrees is recommend between the highand low limit, this will prevent? - ANSWER The boiler going off on high limit before reaching the minimum circulator temperature An advantage of flame retention burner is - ANSWER Their high static pressure enablesboilers and furnaces with tighter more efficient heat exchange passages
The important final adjustment for most oil burners is - ANSWER Combustion air Dirt or lint accumulation in the bevel of the burner fan blades will - ANSWER Reduce theamount of combustion air
To change the air ratio for different firing rates with an adjustable head burner you -ANSWER Adjust the position of the drawer assembly in the Air tube
All petroleum products are chemical compounds of - ANSWER Hydrogen and carbon 1 gallon of #2 oil contains approximately how many BTU's? - ANSWER 140,000 BTU's
