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Assertion (A): A boiler should be sized on the sum of every consumer's maximum demand.

Reason (R): Consumers do not all draw their peak demand at the same moment.

Select the correct answer from the options below.

  • A.Both A and R are true, and R is the correct explanation of A
  • B.Both A and R are true, but R is not the correct explanation of A
  • C.A is true but R is false
  • D.A is false but R is true

Answer: D

Correct answer: A is false but R is true

The reason refutes the assertion. Because consumers do not all peak together, the sum of individual maxima overstates the real demand - and a diversity factor must be applied. Sizing on the raw sum buys a boiler that is too large, costs more and runs inefficiently at part load.

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