List six types of AFCI devices currently recognized by Underwriters Laboratories (UL).

What will be an ideal response?


1. Branch/Feeder AFCI
2. Outlet Circuit AFCI
3. Outlet/Branch Circuit Type
4. Combination AFCI
5. Portable AFCI
6. Cord AFCI

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____________________ is the comparison of two like quantities.

Fill in the blank(s) with the appropriate word(s).

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When a set of wet liners has evidence of severe cavitation, which of the following maintenance and operating practices should be investigated first?

A. idle shutdown duration programming B. road speed governing C. type of antifreeze used and service intervals D. type of engine oil used and service intervals

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Which European nation-state was the only one to engage in free trade by 1850?

a. France b. Holland c. Prussia d. Great Britain

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A hydraulic press is being used to separate a bearing from a shaft. What should be used to cover the bearing during the pressing operation?

A) A shop cloth B) A brake drum C) A paper towel D) A fender cover

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