Engine : Electricity - 287/1386
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| An open in the armature of a DC motor is suspected, but is not found by visual inspection of the commutator. What would be the next step in troubleshooting this problem? |
| A) conduct an insulation resistance test of the armature |
| B) visually inspect the armature windings |
| C) test the commutator for a ground |
| D) conduct a bar to bar test of the armature |
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