Which of the following is an example of a piezoelectric sensor?
A) Oil pressure gauge sender unit
B) Knock sensor
C) Wheel speed sensor
D) Coolant temperature sensor

Question

Quizplus · Accepted Answer

A piezoelectric sensor generates an electric charge in response to pressure or mechanical stress. The knock sensor detects vibrations in the engine caused by detonation, which is a form of pressure. Therefore, the knock sensor is an example of a piezoelectric sensor. The oil pressure gauge sender unit, wheel speed sensor, and coolant temperature sensor do not utilize piezoelectric technology.

Which of the Following Is an Example of a Piezoelectric