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Testing a machine before it leaves the works is done in order to

  • A.improve the efficiency of the machine at rated load
  • B.reduce the losses the machine will suffer in service
  • C.increase the rating the machine can safely carry
  • D.prove it will perform as specified in service

Answer: D

Correct answer: prove it will perform as specified in service

Testing establishes conformity; it does not improve the machine. A test can reveal that a machine is below specification, but nothing done in the test bay makes it more efficient, less lossy or more highly rated than it was built to be.

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