Engine : Electricity - 796/1386
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| As shown in the illustration of an electrically operated watertight door controller, what type of motor is used to open and close the watertight door? EL-0115 |
| A) Permanent magnet DC motor |
| B) Compound wound DC motor |
| C) Series wound DC motor |
| D) Shunt wound DC motor |
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Illustration EL-0115
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