Testing and Troubleshooting - Practice Questions

Question 1

An internal logic gate that shorts to either +VCC or ground will cause the inputs or output to be stuck either LOW or FLOATING.

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Question 2

Which test equipment best allows a comparison between input and output signals?

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Question 3

Which device would best aid in shorted track detection?

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Question 4

The use of a multimeter with digital circuits allows the measurement of:

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Question 5

A +5 V PCB power source that has been "pulled down" to a +3.4 V level may be due to:

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Question 6

What is the next step after discovering a faulty gate within an IC?

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Question 7

A logic probe is placed on the output of a gate and the display indicator is dim. A logic pulser is used on each of the input terminals, but the output indication does not change. What is wrong?

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Question 8

The use of triggered sweep when using an oscilloscope provides more accuracy in which area?

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Question 9

The determination of a digital signal's frequency and waveshape is best accomplished with which test equipment?

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Question 10

The time interval between the start of two consecutive pulses is called pulse repetition time.

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