Oscilloscope patterns are being discussed; Technician A says an open or shorted diode can be detected by the waveform on a lab scope without removing the generator from the vehicle. Technician B says the waveform produced by the AC generator after the output moves through the diodes is a straight line because it is a constant DC voltage. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because an oscilloscope can indeed detect anomalies in diode function by analyzing the waveform, allowing for diagnostics without removing the generator. Technician B is incorrect because the waveform after rectification by diodes is not a perfect straight line due to ripple, indicating it's not a constant DC voltage.

Oscilloscope Patterns Are Being Discussed; Technician a Says an Open