Engine : Electricity - 1285/1386
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| Which of the following procedures should be used to maintain a large electric motor during periods of inactivity? |
| A) A thin layer of air-drying varnish should be applied on the windings. |
| B) Space heaters should be used to prevent condensation of moisture. |
| C) Spraying a solvent periodically to remove carbon dust. |
| D) Compressed air should be blown over areas where dust is deposited. |
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