Two technicians are discussing scope testing. Tech A says that the vertical axis of the screen shows voltage. Tech B says that the horizontal axis shows time. Who is correct?

Answer:both technicians are correct

Explanation:

Scope is the short term for oscilloscope. We can use scope or cathode-ray oscilloscope or DSO to represent oscilloscope. Oscilloscope is a device used in analyzing waveform of electronic signals and also to display it in two dimensional format.

The scope shows the graph of an electric signal showing the voltage on the vertical axis, that is, the y - axis of the screen and, time on the horizontal axis, that is the x-axis.

Therefore, the technicians (that is technician A and Technician B) are both right.