All of the following statements are true EXCEPT: A)a knock sensor has a piezoelectric crystal sensing element that senses vibration and creates a voltage signal of 100 to 200 mV. B)an oxygen (O₂) sensor is a variable DC voltage generator. C)pulse generators are signal generators. D)in a variable AC voltage generator, a magnetic pickup generates an AC analog signal with a positive and negative sine wave.

Question

Quizplus · Accepted Answer

A knock sensor is a piezoelectric device that converts mechanical vibrations into an electrical signal. The output voltage of a knock sensor is typically in the range of 10 to 20 mV, not 100 to 200 mV.

All of the Following Statements Are True EXCEPT