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Large size steam plants and nuclear plants are suitable for

  • A.Peak Loads
  • B.Base Loads
  • C.Intermediate Loads
  • D.Both Peak and Base Loads

Answer: B

Large steam plants and nuclear plants are suitable for base loads.

Both have high capital costs and comparatively low running costs, and both take a long time to start and cannot follow rapid changes of load efficiently. They give their cheapest energy when run continuously at a high, steady output, which is exactly the base load, the part of demand that is present round the clock.

Peak loads are met by plants that start quickly and cost little to keep idle, such as hydro, pumped storage and gas turbine stations. Using steam or nuclear plants for peak or intermediate load wastes their capital and is technically awkward.

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