There are cases in which equipment connected by a plug or cord do not have to be grounded. What are these exceptions?

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There are cases in which equipment connected by a plug or cord do not have to be grounded. These exceptions are as follows: 1) when they receive power through an isolating transformer that has an ungrounded secondary of 50 volts or less, and 2) properly labeled portable tools equipped with a system of double insulation.

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Explain the purposes for which the ohmmeter is used.

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? Identify and state the historical significance of the Gold Standard Act.

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Diamond and polycrystalline diamond tools are used to:

A) Take heavy cuts for high stock removal B) Make intermittent cuts at low speed C) Replace carbide tools on most materials D) Machine hard, abrasive materials at high speed

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