What does Underwriters Laboratories (UL) do?
What will be an ideal response?
UL tests equipment to determine if it is safe under different conditions.
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The ____________________ is probably the most popular solid-state device for controlling large and small electrical power loads.
Fill in the blank(s) with the appropriate word(s).
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The alternator is driven by mechanical energy and converts this energy into:
A. Radiant energy B. Chemical energy C. Electrical energy D. Thermal energy
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Back-to-back and face-to-face describe types of _____ seals
a. inside b. outside c. double d. tandem
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The point-to-point method generally results in a saving of wire.
Answer the following statement true (T) or false (F)
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