What chemical is liquid at room temperatures and is often used in electrical equipment, paint, and industrial chemicals
What is it?
What will be an ideal response?
Mercury.
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List various methods of detecting fires.
What will be an ideal response?
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?Which type of weld joint can be fitted together so that the joint forms a V-groove or square butt joint?
A. ?butt B. ?tee C. ?outside corner D. ?edge
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The start windings have ____.
A. fewer turns than the run windings B. more turns than the run windings C. the same number of turns as the run windings D. larger diameter wire than the run windings
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In fluorescent lamps, electrons emitted from the cathodes strike particles of ____________________ vapor.
Fill in the blank(s) with the appropriate word(s).
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