Electronics And Communication Test Preparations On Alternating Current vs Direct Current Part 2

Test Preparation on Electronics And Communication Test Preparations On Alternating Current vs Direct Current Part 2

1.

What are the two main applications for AC?

1direct, pulsating
2electric, magnetic
3power, information
4static, dynamic

2.

The distance that a signal's energy can travel in the time it takes for one cycle to occur is called the signal's:

1amplitude
2frequency
3wavelength
4period

3.

One oscilloscope selector knob that allows the major and minor divisions of the graticule to be used to determine a signal amplitude value is called the:

1time/cm control
2position control
3intensity control
4volts/cm control

4.

If current varies periodically from zero to a maximum, back to zero, and then repeats, the signal is:

1direct
2alternating
3pulsating
4repetitive

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