MCQ on Digital Electronics with Answers - 7

Multiple Choice Questions with Answers on Digital Electronics Circuits - Boolean Functions & Variables 

1. A product term containing all K variables of the function in either complemented or uncomplemented form is called a
    a) Minterm
    b) Maxterm
    c) Midterm
    d) ∑ term

Ans: a)

 

2. The canonical sum of product form of the function y(A, B) = A + B is
    a) AB + BB + A’A
    b) AB + AB’ + A’B
    c) BA + BA’ + A’B’
    d) AB’ + A’B + A’B’

Ans: b)

 

3. A variable on its own or in its complemented form is known as a
    a) Product Term
    b) Literal
    c) Sum Term
    d) Word

Ans:  b)

 

4. Canonical form is a unique way of representing
    a) SOP
    b) Minterm
    c) Boolean Expressions
    d) POS

Ans: c)

 

5. There are _____________ Minterms for 3 variables (a, b, c).
    a) 0
    b) 2
    c) 8
    d) 1

Ans: c)

 

6. Product-of-Sums expressions can be implemented using
    a) 2-level OR-AND logic circuits
    b) 2-level NOR logic circuits
    c) 2-level XOR logic circuits
    d) Both 2-level OR-AND and NOR logic circuits

Ans: d)

 

7. Don’t care conditions can be used for simplifying Boolean expressions in
    a) Registers
    b) Terms
    c) K-maps
    d) Latches

Ans: c)

 

8. Which of the following expressions can be implemented using either 2-level AND-OR logic circuits or 2-level NAND logic circuits.
    a) POS
    b) Literals
    c) SOP
    d) POS

Ans: c)

 

9. Propagation delay is defined as
    a) the time taken for the output of a gate to change after the inputs have changed
    b) the time taken for the input of a gate to change after the outputs have changed
    c) the time taken for the input of a gate to change after the intermediates have changed
    d) the time taken for the output of a gate to change after the intermediates have changed

Ans: a)

 

10. CMOS refers to __________
    a) Continuous Metal Oxide Semiconductor
    b) Complementary Metal Oxide Semiconductor
    c) Centred Metal Oxide Semiconductor
    d) Concrete Metal Oxide Semiconductor

Ans: b)

Hope this post on "MCQ on Digital Electronics with Answers - 7" will help Electronics Engineering and Electrical Engineering students in preparation of technical interviews, GATE, IES etc.