Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q311: In a 4-variable Karnaugh Map, how many cells are there?
- A: 4
- B: 8
- C: 16
- D: 32
View Answer
C
Q312: What is the maximum number of cells that can be grouped together in a Karnaugh Map?
- A: 2
- B: 4
- C: 8
- D: 16
View Answer
D
Q313: The propagation delay of a logic gate refers to ________.
- A: The time it takes for the output to change after the input changes
- B: The time it takes for the input to change after the output changes
- C: The time it takes for the input to be applied to the gate
- D: The time it takes for the gate to be set
View Answer
A
Q314: In the Karnaugh Map, what should be the size of the group formed for simplification?
- A: Any size
- B: Size of 1
- C: Size of 2 or any power of 2
- D: Size of 3
View Answer
C
Q315: What does each cell in a Karnaugh Map represent?
- A: Variable name
- B: Minterm or Maxterm
- C: Arithmetic value
- D: Boolean operation
View Answer
B
Q316: How are don’t care conditions represented in a Karnaugh Map?
- A: By 0s
- B: By 1s
- C: By x
- D: By blank cells
View Answer
C
Q317: What is the purpose of grouping cells in a Karnaugh Map?
- A: To maximize the number of cells
- B: To minimize the number of groups
- C: To simplify the Boolean expression
- D: To add new variables
View Answer
C
Q318: For a 3-variable Karnaugh Map, what product term does a single cell group represent?
- A: Product term of 2 variables
- B: Product term of 1 variable
- C: Product term of 3 variables
- D: Group term of 4 variables
View Answer
B
Q319: What does a group of 4 cells in a 4-variable Karnaugh Map represent?
- A: Product term of 1 variable
- B: Product term of 2 variables
- C: Product term of 3 variables
- D: Product term of 4 variables
View Answer
B
Q320: How are non-standard SOP expressions handled in Karnaugh Maps?
- A: They are always converted into standard form
- B: They are ignored
- C: They can be mapped directly
- D: They are simplified automatically
View Answer
C