Before starting an oil furnace, the technician should check to see that
A) The cleanout doors are open to allow unwanted debris to be blown out during ignition
B) The flame observation door and all cleanouts are open
C) The flame observation door and all cleanouts are closed
D) The flame observation door is open for viewing
C
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Pesticides like DDT caused population decreases in species such as the _____
a. bald eagle b. black-footed ferret c. red wolf d. California condor
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Explain the proper bevel to prepare pipes for welding.
What will be an ideal response?
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A 10 amp fuse is normally what color?
A) Red B) Green C) Yellow D) Blue
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Fiber column forms are a tube made by wrapping layers of fiber _____
a. in a crisscross pattern b. around a core c. alternating with layers of plastic film d. in a spiral
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