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Ship propulsion by electric drive is attractive because it

  • A.frees the layout from a mechanical shaft line
  • B.eliminates the need for any prime mover on board
  • C.removes the requirement for any propulsion control
  • D.gives a higher top speed than mechanical drive

Answer: A

Generators can be placed anywhere convenient and the propulsion motor put in a pod outside the hull, which improves both the arrangement and the manoeuvring. Efficiency at part load is better as well, since generators can be shut down as demand falls.

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