Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q231: How can a NOT gate be implemented using NAND gates?
- A: By connecting both inputs together
- B: By using a single NAND gate
- C: By using an OR gate
- D: By using a NOR gate
View Answer
A
Q232: What is the output of a NOR gate when both inputs are 0?
- A: zero
- B: 1
- C: 10
- D: 1
View Answer
B
Q233: What is the function of a NAND gate in digital circuits?
- A: AND-NOT function
- B: OR-NOT function
- C: Addition function
- D: Subtraction function
View Answer
A
Q234: How is an OR gate implemented using NAND gates?
- A: By using one NAND gate
- B: By using two NAND gates
- C: By using three NAND gates
- D: By using four NAND gates
View Answer
C
Q235: Which logic gate can be used as a universal gate?
- A: AND Gate
- B: OR Gate
- C: NOR Gate
- D: XOR Gate
View Answer
C
Q236: How can a NOT gate be implemented using a NOR gate?
- A: By connecting both inputs of the NOR gate together
- B: By connecting one input of the NOR gate to ground
- C: By using two separate NOR gates
- D: By using a NAND gate with one input connected to the NOR gate
View Answer
A
Q237: What is the output of a NOR gate when both inputs are 1?
- A: 1
- B: zero
- C: Undefined
- D: High impedance
View Answer
B
Q238: The output of an XOR gate is zero (0) when __________
- A: I Only
- B: IV Only
- C: I and IV only
- D: II and III only
View Answer
C
Q239: How many NOR gates are needed to implement an AND gate?
- A: One
- B: Two
- C: Three
- D: Four
View Answer
C
Q240: What is the result of connecting a NOR gate with a NOT gate at its output?
- A: It performs the OR function
- B: It performs the AND function
- C: It performs the NAND function
- D: It performs the XOR function
View Answer
A