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The specific energy consumption of a plant is its energy consumption divided by its

  • A.output of product
  • B.installed capacity
  • C.number of employees
  • D.turnover for the year

Answer: A

Correct answer: output of product

Specific energy consumption is energy per unit of output, and it is that ratio rather than the absolute figure that measures efficiency. Dividing by capacity, headcount or turnover would give a number that moves with things having nothing to do with how well energy is used - which is why the denominator must be physical product.

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