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# Digital Electronics - Logic Gates

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### Exercise

"Everyone is wise until he speaks."
- (Proverb)
1.

The output of an AND gate with three inputs, A, B, and C, is HIGH when ________.

 A. A = 1, B = 1, C = 0 B. A = 0, B = 0, C = 0 C. A = 1, B = 1, C = 1 D. A = 1, B = 0, C = 1

2.

If a 3-input NOR gate has eight input possibilities, how many of those possibilities will result in a HIGH output?

 A. 1 B. 2 C. 7 D. 8

3.

If a signal passing through a gate is inhibited by sending a LOW into one of the inputs, and the output is HIGH, the gate is a(n):

 A. AND B. NAND C. NOR D. OR

4.

A device used to display one or more digital signals so that they can be compared to expected timing diagrams for the signals is a:

 A. DMM B. spectrum analyzer C. logic analyzer D. frequency counter

5.

When used with an IC, what does the term "QUAD" indicate?

 A. 2 circuits B. 4 circuits C. 6 circuits D. 8 circuits