MCQ on Digital Electronics with Answers - 2
Multiple Choice Questions with Answers on Digital Electronics Circuits - Boolean Expression Simplification
1. Absorption law
expression is
a. A + AB = A
b. A + AB = B
c. AB + AA’ = A
d. A + B = B + A
Answer:
a
2. The involution of A
is
a. A
b. A’
c. 1
d. 0
Answer:
a
3. A(A + B) is equal to
a. AB
b. 1
c. (1 + AB)
d. A
Answer:
d
4. According to DeMorgan’s
theorem
a. (AB)’ = A’ + B’
b. (A + B)’ = A’ B
c. A’ + B’ = A’B’
d. (AB)’ = A’ + B
Answer:
a
5. Value of (A + B)(A’
* B’) is equal to
a. 1
b. 0
c. AB
d. AB’
Answer:
b
6. Complement of the
expression A’B + CD’ is equal to
a. (A’ + B)(C’ + D)
b. (A + B’)(C’ + D)
c. (A’ + B)(C’ + D)
d. (A + B’)(C + D’)
Answer:
b
7. Simplified
value of Y = AB’ + (A’ + B)C is
a. AB’ + C
b. AB + AC
c. A’B + AC’
d. AB + A
Answer:
a
8. The Boolean
function A + BC is a reduced form of
a. AB + BC
b. (A + B)(A + C)
c. A’B + AB’C
d. (A + C)B
Answer:
b
9. Code
is a symbolic representation of
a. Continuous information
b. Discrete information
c. Analog information
d. Both continuous and discrete information
Answer:
b
10. The process of
representing numbers, letters or words by
a special group of symbols is known as
a. Decoding
b. Encoding
c. Digitizing
d. Inverting
Answer:
b
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