Engine : Electricity - 652/1386
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| When using a megohmmeter to determine which shunt field coil is grounded in a DC machine, what must you do? |
| A) use a motor driven high capacity megohmmeter |
| B) insulate the field frame from the ship's hull |
| C) remove all main line lead connections before testing |
| D) disconnect each shunt field coil before testing |
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