Engine_2014 : Electricity - 1078/2299
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| In preparing to take insulation resistance readings on a main generator, the windings should be grounded for about 15 minutes prior to the test. For what reason should this be done? |
| A) allow accurate zeroing of the meter |
| B) help the windings to cool to ambient temperature |
| C) release any residual capacitive charge from the windings |
| D) help the windings to cool to the same temperature as the ground test connection |
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