Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q341: Which output is set to 1 when the input numbers are equal in a 2-bit comparator circuit?
- A: A>B
- B: A
- C: A=B
- D: None
View Answer
C
Q342: What is the simplified Boolean expression for A>B output in a 4-variable Karnaugh map?
- A: A B + A B B + A A B
- B: A B + A A B B + A B B
- C: A B + A B C + A C B
- D: A B + A B D + C B
View Answer
B
Q343: In a 4-variable Karnaugh map, how many groups of 4 cells are formed in the example for A>B output?
- A: 4
- B: 5
- C: 6
- D: 7
View Answer
C
Q344: What is the purpose of the Quine-McCluskey method in Boolean algebra simplification?
- A: To group terms in Karnaugh maps
- B: To perform an exhaustive search for minimal product terms
- C: To manually simplify Boolean expressions
- D: To find maximum product terms
View Answer
B
Q345: How many essential Prime Implicants are found in the Quine-McCluskey example for the function?
- A: 2
- B: 3
- C: 4
- D: 5
View Answer
B
Q346: Which of the following minterms is not included in the canonical sum form for the Odd-Prime detector?
- A: 1
- B: 7
- C: 15
- D: 14
View Answer
D
Q347: What does the Quine-McCluskey method help avoid in Karnaugh maps?
- A: Redundant terms
- B: Missing terms
- C: Incorrect grouping
- D: Extra variables
View Answer
A
Q348: What is the number of 1s in the minterm 7?
- A: 2
- B: 3
- C: 4
- D: 1
View Answer
B
Q349: Which minterm has 4 1s in its binary representation?
- A: 17
- B: 23
- C: 29
- D: 31
View Answer
B
Q350: In the Quine-McCluskey method, minterms 1 and 3 eliminate which variable to form the product term ABCE?
- A: A
- B: B
- C: C
- D: D
View Answer
D