Here Are 50 Quizzes / Multiple-Choice Questions (Mcqs) Related To
DIGITAL ELECTRONICS
Along With Their Correct Answers
1. **Question:** What is the fundamental building block of digital circuits?
- A) Resistor
- B) Capacitor
- C) Transistor
- D) Inductor
- **Correct Answer:** C) Transistor
2. **Question:** In a binary number system, what are the possible digits?
- A) 0 and 1
- B) 0 and 9
- C) 1 and 2
- D) 0 and 2
- **Correct Answer:** A) 0 and 1
3. **Question:** Which logic gate performs the NOT operation?
- A) AND gate
- B) OR gate
- C) XOR gate
, - D) NOT gate
- **Correct Answer:** D) NOT gate
4. **Question:** What is the output of an AND gate when both inputs are 1?
- A) 0
- B) 1
- C) Undefined
- D) Depends on other factors
- **Correct Answer:** B) 1
5. **Question:** Which logic gate's output is 1 if and only if exactly one input is
1?
- A) AND gate
- B) OR gate
- C) XOR gate
- D) NOT gate
- **Correct Answer:** C) XOR gate
6. **Question:** How many inputs does a 4-input NAND gate have?
- A) 2
- B) 3
- C) 4
, - D) 5
- **Correct Answer:** C) 4
7. **Question:** Which type of flip-flop has two stable states and is often used
for storing one bit of memory?
- A) D flip-flop
- B) JK flip-flop
- C) SR flip-flop
- D) T flip-flop
- **Correct Answer:** C) SR flip-flop
8. **Question:** What is the purpose of a decoder in digital circuits?
- A) Converts analog to digital signals
- B) Converts binary to decimal numbers
- C) Converts binary code to a specific output line
- D) Converts high voltage to low voltage
- **Correct Answer:** C) Converts binary code to a specific output line
9. **Question:** Which type of memory retains its data even when the power is
turned off?
- A) RAM
- B) ROM
DIGITAL ELECTRONICS
Along With Their Correct Answers
1. **Question:** What is the fundamental building block of digital circuits?
- A) Resistor
- B) Capacitor
- C) Transistor
- D) Inductor
- **Correct Answer:** C) Transistor
2. **Question:** In a binary number system, what are the possible digits?
- A) 0 and 1
- B) 0 and 9
- C) 1 and 2
- D) 0 and 2
- **Correct Answer:** A) 0 and 1
3. **Question:** Which logic gate performs the NOT operation?
- A) AND gate
- B) OR gate
- C) XOR gate
, - D) NOT gate
- **Correct Answer:** D) NOT gate
4. **Question:** What is the output of an AND gate when both inputs are 1?
- A) 0
- B) 1
- C) Undefined
- D) Depends on other factors
- **Correct Answer:** B) 1
5. **Question:** Which logic gate's output is 1 if and only if exactly one input is
1?
- A) AND gate
- B) OR gate
- C) XOR gate
- D) NOT gate
- **Correct Answer:** C) XOR gate
6. **Question:** How many inputs does a 4-input NAND gate have?
- A) 2
- B) 3
- C) 4
, - D) 5
- **Correct Answer:** C) 4
7. **Question:** Which type of flip-flop has two stable states and is often used
for storing one bit of memory?
- A) D flip-flop
- B) JK flip-flop
- C) SR flip-flop
- D) T flip-flop
- **Correct Answer:** C) SR flip-flop
8. **Question:** What is the purpose of a decoder in digital circuits?
- A) Converts analog to digital signals
- B) Converts binary to decimal numbers
- C) Converts binary code to a specific output line
- D) Converts high voltage to low voltage
- **Correct Answer:** C) Converts binary code to a specific output line
9. **Question:** Which type of memory retains its data even when the power is
turned off?
- A) RAM
- B) ROM
