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An energy meter whose disc has seized will

  • A.continue to register correctly
  • B.burn out its pressure coil within a few minutes of the seizure
  • C.register nothing while current continues to be drawn
  • D.register high

Answer: C

Correct answer: register nothing while current continues to be drawn

The register is driven by the disc through a gear train, so a seized disc advances nothing at all while the load continues to be supplied. The consumer is billed for nothing, which is why meter tampering often takes exactly this form and why a reading that stops changing while the premises are plainly occupied is the first thing an inspection looks for.

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