Which of the following power tools is a device that uses the rotating force of one material against another material to reduce or adjust the shape and size of an object?
A. Drill
B. Hoist
C. Grinder
D. Reciprocating saw
A. Incorrect. A drill is a device that contains a rotating bit designed to bore holes into various types of materials.
B. Incorrect. A hoist is a device composed of a pulley or gear system with a cable or chain used to lift and move heavy objects.
C. Correct. A grinder is a device that uses the rotating force of one material against another material to reduce or adjust the shape and size of an object.
D. Incorrect. A reciprocating saw is a device that uses the back-and-forth motion of a saw blade to cut materials such as wood and metal pipe.
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