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Digital Electronics MCQs

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1. Digital electronics deals primarily with signals that are:





2. A binary digit is also known as:





3. The two possible states in a binary system are:





4. Value of binary number 1101 is:





5. Which is used to convert binary numbers to decimal?





6. Correct logic operation for AND gate:





7. Symbol for a NOT gate:





8. Gate that is a combination of AND and NOT:





9. XOR gate outputs 1 when:





10. NOR gate truth table is the opposite of:





11. Multiplexer (MUX) is used to:





12. Demultiplexer (DEMUX) is used to:





13. A full adder can add:





14. Half adder is used to add:





15. Priority encoder produces binary code corresponding to:





16. Flip-flop is a:





17. Most common flip-flop in digital circuits:





18. JK flip-flop:





19. T flip-flop is derived from:





20. Counter is used to:





21. Gray code is a binary system in which:





22. In BCD, each decimal digit is represented by:





23. In hexadecimal, number ‘A’ represents:





24. Binary equivalent of decimal 25:





25. Excess-3 (XS-3) code represents decimal digit as:





26. Shift register is used to:





27. Serial adder performs addition by:





28. DAC is used to:





29. Register in a digital system is used to:





30. Multiplexer (MUX) allows for:





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