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Power Tools- Questions and Answers
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Power Tools- Questions and Answers
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Power Tools- Questions and AnswersChuck Correct Ans-A clamping device that holds an attachment; for example, the chuck of
the drill holds the drill bit.
Chuck key Correct Ans-A small, T-shaped steel piece used to open and close the chuck on
power drills.
Countersink Correct Ans-A bit or drill used to set the head of a screw at or below the surface
of the material.
DC direct current Correct Ans-Electrical current that flows in one direction, from the negative
(2) to the positive (1) terminal of the source, such as a battery.
Electric tools Correct Ans-Tools powered by electricity. the electricity is supplied by either an
AC source (wall plugs) or a DC source (battery).
Ferromagnetic Correct Ans-Having magnetic properties. Substances such as iron, nickel,
cobolt, and various alloys are ferromagnetic.
Grit Correct Ans-A granular abrasive used to make sandpaper or applied to the surface of a
grinding wheel to give it a nonslip finish. Grit is graded according to its texture. the grit number
indicates the number of abrasive granules in a standard size (per inch or per cm). The higher the
grit number, the finer the abrasive material.
Ground fault circuit interrupter GFCI Correct Ans-A circuit breaker designed to protect
people from electric shook and to protect equipment from damage by interrupting the flow of
electricity if a circuit fault occurs.
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