A tachometer normally refers to a(n) ____ used for speed measurement.
A)load cell
B)capacitive proximity sensor
C)ultrasonic sensor
D)small generator

Question

Quizplus · Accepted Answer

A tachometer measures the rotation speed of a shaft or disk in a motor or engine. This is typically done by measuring the voltage generated by a small generator or alternator that is attached to the rotating part, and then using that voltage to determine the speed of rotation. Therefore, the correct answer is D - small generator.

A Tachometer Normally Refers to A(n) ____ Used for Speed