Boolean Algebra – 1 – 1

1. In a digital control system, there are three inputs a,b,c. The output should be present when at least two inputs are present.
The Boolean expression for the output is :

(a) Mcq series
(b) Mcq series
(c) Mcq series
(d) Mcq series

Answer
Answer : (a)

Explanation
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2. Simplified form of :

Mcq series

(a) Mcq series
(b) Mcq series
(c) Mcq series
(d) Mcq series

Answer
Answer : (a)

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

3. Two binary signals a,b are to be compared. The output expression when the two signals are equal is given by :

(a) Mcq series
(b) Mcq series
(c) Mcq series
(d) Mcq series

Answer
Answer : (b)

Explanation
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4. The Boolean expression for the sub-class(R) of all digital electronics instruments which are not measuring instruments and have no battery supply is :

(a) Mcq series
(b) Mcq series
(c) Mcq series
(d) Mcq series

Answer
Answer : (c)

Explanation
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5. The minimum Boolean expression for the circuit shown below :
Mcq series

(a) XY+XZ+YZ
(b) X+YZ
(c) X+Y
(d) X+Y+Z
Answer
Answer : (d)

Explanation
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