Engine : Electricity - 380/1386
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| What should be included in the performance of routine maintenance of dry-type transformers? |
| A) measuring and recording the winding temperature with an accurate mercury thermometer |
| B) making sure that the units are close to bulkheads or corners to protect them from damage |
| C) periodic cleaning of the winding insulation with an approved solvent |
| D) cleaning the windings, if accessible, with a vacuum cleaner or very low pressure air |
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