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Oil burners Exam Help

Jonas

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Across
1.Type of boiler that requires a low water cut-off
5.Minimum size oil line
9.Key final adjustment for most oil burners
10.Btu's in 1 gal. of fuel oil
11.Service switch must be within how many feet of the burner
15.Type of fuel delivery set-up that requires a check valve on the supply line of an oil tank
16.Finest mesh screen size allowable on a vent pipe
20.Minimum distance from burner to tank
21.The difference between cut-in and cut-out of an oil pump
22.Maximum length of flexible conduit that can be used on an oil burner
23.Minimum gauge oil tank
25.Outside tanks must be protected by atmospheric corrosion and ______ damage
27.About 21% of air is made up of this
28.Type of furnace that requires plastic piping and acidic protection
29.Lock out time of a burner firing 3.1-20 gph
30.The combination of elements found in fuel oil
31.To convert a oil pump to a two pipe system an internal ______ plug must be installed
35.Installed to remedy high viscosity
36.Fuel introduced to the combustion chamber before ignition (type of ignition)
38.Where should return lines be connected to the tank
40.A stack switch requires ______ conduit
41.Oil burners that produce smoke also produces ____
42.Increasing the fuel pump pressure will ______ the flow rate
Down
1.A cause of pulsating oil pump pressure and a pulsating fire is air leaks in the ______ line
2.Amount of time fire restive assemblys must protect tanks
3.Changing what pressure changes the GPH of the nozzel
4.Used to get the proper amount of air flow through the burner
5.Distance above grade vent pipes must be
6.UL standard for storage tank 660 gal or less
7.Maximum allowed voltage for an oil burner circuit
8.The flash point of #2 fuel oil
10.UL standard for storage tank above 660 gal
12.Two problems a vacuum test will reveal is air leas and ______ in the pipe
13.Temp at which flue gases will start to condense
14.Draft ______ when its hotter outside
17.Next to last component of the nozzle oil travels through
18.Lockout time of a burner firing less than 3GPH
19.Temp at which all thermal switches and valves trip
23.The lower end of the vent pipe may never extend more then how much into the tank
24.The name of the lowest temp at which vapors in air above fuel ignite for short period of time when exposed to flame
26.As more air is added to the fire, the draft reading ______
29.The flow rate on the nozzle is based on ___ psi
32.Joints that allow movement in the piping
33.A cast-iron boiler that is dry fired could _____
34.Material used for oil supply and return lines
37.Contains the flame and maintains a burn (combustion -what-)
39.Minimum distance above grade for vent pipes

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