Multiple choice

1. In a CRT, the direction of electron beam deflection depends on the

A. type of inert gas that the tube contains.

B. amount of voltage that’s applied to the deflection plates.

C. size of the screen.

D. polarity of the voltage that’s applied to the deflection plates.

2. To increase the vertical size of a 2 V square waveform that appears only one-half division high on your scope screen, you should adjust the

A. vertical position control. 

B. volts per division control. 

C. time base control.

D. coupling switch to ADD.

3. The output signal from a frequency inverter will appear on a scope screen as a

A. pure sine wave of different frequencies.

B. triangular-shaped waveform with distorted peaks.

C. distorted square wave.

D. distorted sine wave.

4. An AC voltage that’s present on a DC power supply’s output is called

A. distortion. 

B. ripple. 

C. oscillation.

D. flicker.