Logic Gates – Exercise – 2

81. The switching speed of CMOS is now ________.

(a) competitive with TTL
(b) three times that of TTL
(c) slower than TTL
(d) twice that of TTL

Answer
Answer : (a)
Explanation
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82. One advantage TTL has over CMOS is that TTL is ________.

(a) less expensive
(b) not sensitive to electrostatic discharge
(c) faster
(d) more widely available

Answer
Answer : (b)
Explanation
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83. The output of a NAND gate is LOW if ________.

(a) all inputs are LOW
(b) all inputs are HIGH
(c) any input is LOW
(d) any input is HIGH

Answer
Answer : (b)
Explanation
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84. The output of a NOR gate is HIGH if ________.

(a) all inputs are HIGH
(b) any input is HIGH
(c) any input is LOW
(d) all inputs are LOW

Answer
Answer : (d)
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85. The logic expression for a NOR gate is ________.

(a)
(b)
(c)
(d)

Answer
Answer : (d)
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