DIGITAL ELECTRONICS MCQS SET 04

DIGITAL ELECTRONICS MCQS SET 04

1. The binary number 10101 is equivalent to decimal number …………..
1. 19         2. 12          3. 27             4. 21
Answer: 4
 

2. The universal gate is ………………
1. NAND gate        2.OR gate         3. AND gate          4. None
Answer: 1
 

3. The inverter is ……………
1. NOT gate     2. OR gate         3. AND gate       4. None
Answer: 1
 

4. The inputs of a NAND gate are connected together. The resulting circuit is ………….
1. OR gate       2. AND gate     3. NOT gate       4. None
Answer: 3
 

5. The NOR gate is OR gate followed by ………………
1. AND gate       2. NAND gate      3. NOT gate       4. None
Answer: 3
 

6. The NAND gate is AND gate followed by …………………
1. NOT gate       2. OR gate       3. AND gate          4. None
Answer: 1
 

7. Digital circuit can be made by the repeated use of ………………
1. OR gates       2. NOT gates         3. NAND gates         4. None
Answer: 3
 

8. The only function of NOT gate is to ……………..
1. Stop signal       2. Invert input signal      3.Act as a universal gate
4. None
Answer: 2
 

9. When an input signal 1 is applied to a NOT gate, the output is ………………
1. 0    2. 1            3. Either 0 & 1     4. None
Answer: 1
 

10. In Boolean algebra, the bar sign (-) indicates ………………..
1. OR operation      2. AND operation     3. NOT operation     4. None
Answer: 3