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Logic Gates – 1 – 5

 

21. 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) OR
(b) AND
(c) NOR
(d) NAND

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

22. The output will be a LOW for any case when one or more inputs are zero in a(n) :

(a) OR gate
(b) AND gate
(c) NOT gate
(d) NAND gate

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

23. The logic gate that will have HIGH or “1” at its output when any one of its inputs is HIGH is a(n) :

(a) OR gate
(b) NOT gate
(c) AND gate
(d) NOR gate

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

24. A single transistor can be used to build which of the following digital logic gates ?

(a) OR gates
(b) AND gates
(c) NOT gates
(d) NAND gates

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

25. How many truth table entries are necessary for a four-input circuit ?

(a) 4
(b) 8
(c) 12
(d) 16

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

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