Explore topic-wise MCQs in Discrete Mathematics.

This section includes 70 Mcqs, each offering curated multiple-choice questions to sharpen your Discrete Mathematics knowledge and support exam preparation. Choose a topic below to get started.

51.

How many number of prime implicants are there in the expression F(x, y, z) = y’z’ + xy + x’z.

A. 7
B. 19
C. 3
D. 53
Answer» D. 53
52.

Using which component a shift register is implemented?

A. register
B. transistor
C. latch
D. flip-flop
Answer» E.
53.

Simplify the expression: A’(A + BC) + (AC + B’C).

A. (AB’C+BC’)
B. (A’B+C’)
C. (A+ BC)
D. AC
Answer» C. (A+ BC)
54.

When designing a circuit to emulate a truth table, both Product-of-Sums (POS) expressions and Sum-of-Products (SOP) expressions can be derived from?

A. k-map
B. NAND gate
C. NOR gate
D. X-NOR gate
Answer» B. NAND gate
55.

To display time in railway stations which digital circuit is used?

A. seven segment decoder
B. eight segment encoder
C. 8:3 multiplexer
D. 9 bit segment driver
Answer» B. eight segment encoder
56.

What is the use of Boolean identities?

A. Minimizing the Boolean expression
B. Maximizing the Boolean expression
C. To evaluate a logical identity
D. Searching of an algebraic expression
Answer» B. Maximizing the Boolean expression
57.

Determine the number of prime implicants of the following function F?

A. 621
B. 187
C. 3⁵
D. 5
Answer» E.
58.

Equivalence of automata states that ____________

A. two automata accept the same set of input strings
B. two automata have same set of states
C. two automata does not contain initial input symbols
D. two automata share equal transition function
Answer» B. two automata have same set of states
59.

Simplify the expression using K-maps: F(A,B,C) = π(0,2,4,5,7).

A. (x+y)(y+z)(x+z)(x’+z’)
B. (x+z’)(y+z)(x+y)
C. (x+y’+z)(x+z’)
D. (y’+z’)(x’+y)(z+y’)
Answer» B. (x+z’)(y+z)(x+y)
60.

Minimization of function F(A,B,C) = A*B*(B+C) is _________

A. AC
B. B+C
C. B`
D. AB
Answer» E.
61.

Which of the following is a Simplification law?

A. M.(~M+N) = M.N
B. M+(N.O) = (M+N)(M+O)
C. ~(M+N) = ~M.~N
D. M.(N.O) = (M.N).O
Answer» B. M+(N.O) = (M+N)(M+O)
62.

The ___________ of all the variables in direct or complemented from is a maxterm.

A. addition
B. product
C. moduler
D. subtraction
Answer» B. product
63.

Algebra of logic is termed as ______________

A. Numerical logic
B. Boolean algebra
C. Arithmetic logic
D. Boolean number
Answer» D. Boolean number
64.

The logic gate that provides high output for same inputs ____________

A. NOT
B. X-NOR
C. AND
D. XOR
Answer» C. AND
65.

What is the definition of Boolean functions?

A. An arithmetic function with k degrees such that f:Y–>Yᵏ
B. A special mathematical function with n degrees such that f:Yⁿ–>Y
C. An algebraic function with n degrees such that f:Xⁿ–>X
D. A polynomial function with k degrees such that f:X²–>Xⁿ
Answer» C. An algebraic function with n degrees such that f:Xⁿ–>X
66.

A ________ value is represented by a Boolean expression.

A. Positive
B. Recursive
C. Negative
D. Boolean
Answer» E.
67.

Boolean algebra can be used ____________

A. For designing of the digital computers
B. In building logic symbols
C. Circuit theory
D. Building algebraic functions
Answer» B. In building logic symbols
68.

Which of the following is/are the universal logic gates?

A. OR and NOR
B. AND
C. NAND and NOR
D. NOT
Answer» D. NOT
69.

F(X,Y,Z,M) = X`Y`Z`M`. The degree of the function is ________

A. 2
B. 5
C. 4
D. 1
Answer» D. 1
70.

What are the canonical forms of Boolean Expressions?

A. OR and XOR
B. NOR and XNOR
C. MAX and MIN
D. SOM and POM
Answer» E.