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Which of the following is NOT an adjustment provided on an induction energy meter?

  • A.the position of the braking magnet along the disc radius
  • B.a zero adjustment for the register
  • C.the lag or quadrature adjustment on the shunt magnet
  • D.the light-load adjustment for friction compensation

Answer: B

There is nothing to zero: the register counts from wherever it stands and only the difference between two readings is used. An indicating instrument needs a zero adjustment because its pointer must rest at the mark when nothing is applied.

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