Basic Electronics (3110016) MCQs

MCQs of Digital

Showing 11 to 20 out of 30 Questions
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11.
Which of the following logic families offers better noise immunity ?
(a) RTL
(b) ECL
(c) PMOS
(d) CMOS
Answer:

Option (d)

12.
Recommended fan out out TTL is around __________.
(a) 4
(b) 10
(c) 20
(d) 50
Answer:

Option (b)

13.
From the following which of the logic family has maximum fan out ?
(a) TTL
(b) ECL
(c) CMOS
(d) PMOS
Answer:

Option (c)

14.
The output of NAND gate is low if __________.
(a) all the inputs are high
(b) all the inputs are low
(c) at least one input is high
(d) at least one input is low
Answer:

Option (a)

15.
The output of NOR gate is high if __________.
(a) all inputs are high
(b) all inputs are low
(c) at least one input is high
(d) at least one input is low
Answer:

Option (b)

16.
Output of XOR gate is high if _____________.
(a) Number of 1's in input is even
(b) Number of 1's in input is odd
(c) all inputs are 0
(d) all inputs are 1
Answer:

Option (b)

17.
If output of a two input gate is expressed as A¯B+AB¯, it best represents __________ gate.
(a) NOR
(b) NAND
(c) XOR
(d) XNOR
Answer:

Option (c)

18.
If the output of a two input gate is represent as A¯ B¯+A B, it best represents ________ gate.
(a) NOR
(b) NAND
(c) XOR
(d) XNOR
Answer:

Option (d)

19.
Minimum NAND gates required to design an OR gate will be ___________.
(a) 1
(b) 2
(c) 3
(d) 4
Answer:

Option (c)

20.
Minimum number of NOR gates required to design OR gate will be __________ .
(a) 1
(b) 2
(c) 3
(d) 4
Answer:

Option (b)

Showing 11 to 20 out of 30 Questions
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