Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q331: In a 4-variable K-map, how many variables does a group of 2 cells represent?
- A: 1
- B: 2
- C: 3
- D: 4
View Answer
B
Q332: What is the simplified POS expression for the maxterms 0 and 4 using a 3-variable K-map?
- A: (A + B + C)
- B: (A + C)
- C: (B + C)
- D: (A + B)
View Answer
B
Q333: For a 5-variable Karnaugh map, how many groups of 16 cells can be formed?
- A: 1
- B: 2
- C: 4
- D: 8
View Answer
B
Q334: In a 5-variable K-map, what is the term for a group of 4 cells that spans two 4-variable maps?
- A: BDE
- B: ABCDE
- C: BCD
- D: ABE
View Answer
A
Q335: For a BCD to 7-Segment Decoder, how many different segments are controlled by the circuit?
- A: 5
- B: 6
- C: 7
- D: 8
View Answer
C
Q336: What does the 4-bit BCD input to a 7-Segment Decoder determine?
- A: The decimal number to be displayed
- B: The binary number to be displayed
- C: The hex number to be displayed
- D: The output power level
View Answer
A
Q337: How many function tables are required for a 7-Segment Display with a 4-bit input?
- A: 4
- B: 5
- C: 6
- D: 7
View Answer
D
Q338: What does a comparator circuit do?
- A: Compares two numbers and outputs a signal
- B: Adds two numbers and outputs the sum
- C: Subtracts two numbers and outputs the difference
- D: Multiplies two numbers and outputs the product
View Answer
A
Q339: Which of the following input combinations will set the output A>B to 1 for a 2-bit comparator?
- A: 00 01
- B: 01 10
- C: 10 00
- D: 01 11
View Answer
C
Q340: How many outputs does a 2-bit comparator circuit have?
- A: 2
- B: 3
- C: 4
- D: 5
View Answer
B