Multiple Choice Questions and Answers on Digital Electronics

Multiple Choice Questions and Answers on Digital Electronics

Q1. The binary number 10101 is equivalent to decimal number …………..

  1. 19
  2. 12
  3. 27
  4. 21

Answer : 4

Q2. The universal gate is ………………

  1. NAND gate
  2. OR gate
  3. AND gate
  4. None of the above

Answer : 1

Q3. The inverter is ……………

  1. NOT gate
  2. OR gate
  3. AND gate
  4. None of the above

Answer : 1

Q4. The inputs of a NAND gate are connected together. The resulting circuit is ………….

  1. OR gate
  2. AND gate
  3. NOT gate
  4. None of the above

Answer : 3

Q5. The NOR gate is OR gate followed by ………………

  1. AND gate
  2. NAND gate
  3. NOT gate
  4. None of the above

Answer : 3

Q6. The NAND gate is AND gate followed by …………………

  1. NOT gate
  2. OR gate
  3. AND gate
  4. None of the above

Answer : 1

Q7. Digital circuit can be made by the repeated use of ………………

  1. OR gates
  2. NOT gates
  3. NAND gates
  4. None of the above

Answer : 3

Q8. The only function of NOT gate is to ……………..

  1. Stop signal
  2. Invert input signal
  3. Act as a universal gate
  4. None of the above

Answer : 2

Q9. When an input signal 1 is applied to a NOT gate, the output is ………………

  1. 0
  2. 1
  3. Either 0 & 1
  4. None of the above

Answer : 1

Q10. In Boolean algebra, the bar sign (-) indicates ………………..

  1. OR operation
  2. AND operation
  3. NOT operation
  4. None of the above

Answer : 3

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