Gas Turbines USCG Question #355 (Set 5)

A magnet pickup typically produces what type of signal output?

Official USCG Answer & Rule Citation

Correct Answer: Option C — voltage pulse

Magnetic pickups generate a voltage pulse each time a ferrous gear tooth passes the sensor tip. These pulses are counted by the electronic control system over a specific time interval to calculate precise shaft RPM. The frequency of these pulses is directly proportional to the speed of the rotating component.

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