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Assertion: total consumption is a poor measure of energy performance. Reason: it varies with output as well as with efficiency.

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

Answer: A

A plant that halves its output halves much of its consumption without having improved at all, which is precisely why the total tells one so little. Dividing by output, and allowing for the fixed component, is what isolates the performance.

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