Meters and troubleshootingQuestion 744 of 1506

What is the effect of running a precision tachogenerator far above its full-scale speed?

  1. Its life is shortened
  2. Its output polarity reverses
  3. Nothing; it is rated for any speed
  4. Its accuracy gets better
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Correct answer: Its life is shortened

A precision instrument should not be significantly overspeed.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 9.4: Tachogenerators

Practice meters and troubleshooting

Questions last reviewed: 18 October 2026