Engine : Electricity - 1221/1386
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| Which of the following statements is true concerning a large polyphase synchronous main propulsion motor as used in an electric propulsion drive system? |
| A) Resistance is gradually added to the rotor circuit. |
| B) The starting current is held below the rated current. |
| C) The motor is started as an induction motor. |
| D) The field winding is energized for starting purposes only. |
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