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Assertion: the average specific consumption equals the marginal specific consumption. Reason: both are obtained by dividing energy by output.

  • A.the assertion is true but the reason given for it is false
  • B.the assertion is false although the reason offered is a true statement in itself
  • C.both the assertion and the reason are true and the reason explains the assertion
  • D.both the assertion and the reason are true but the reason does not explain the assertion

Answer: B

The average divides the whole consumption, fixed component included, by the whole output; the marginal figure is the slope of the relation and excludes the fixed part. They coincide only if the fixed load is zero, which no real plant achieves.

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