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Digital & Industrial Electronics MCQs – DAE Electrical Engineering

50 Score: 0 Attempted: 0/50
1. A digital signal has:



2. The main advantage of digital electronics over analog is:



3. A logic “1” in digital circuits represents:



4. The binary number system uses:



5. The decimal equivalent of binary 1011 is:



6. A NOT gate is also called:



7. The output of an AND gate is “1” only when:



8. The output of an OR gate is “1” when:



9. A NAND gate is equivalent to:



10. A flip-flop is used to:



11. A D flip-flop stores:



12. A JK flip-flop differs from a SR flip-flop because:



13. The main function of a counter is to:



14. A 4-bit binary counter can count up to:



15. A multiplexer (MUX) is used to:



16. A demultiplexer (DEMUX) is used to:



17. An ADC (Analog to Digital Converter) converts:



18. A DAC (Digital to Analog Converter) converts:



19. Industrial electronics commonly uses:



20. A PLC (Programmable Logic Controller) is used for:



21. A TRIAC is used in:



22. A SCR (Silicon Controlled Rectifier) is used for:



23. In industrial drives, speed control is achieved by:



24. A common sensor used in industrial automation is:



25. TTL logic gates operate at:



26. CMOS logic gates are preferred because:



27. In digital electronics, a clock signal is used to:



28. A buffer gate is used to:



29. A Schmitt trigger is used to:



30. A binary half adder adds:



31. A full adder adds:



32. Inverters are widely used in:



33. Industrial electronics improves:



34. Industrial drives use:



35. A relay in industrial electronics is used to:



36. The main purpose of industrial control panels is:



37. A PLC input can be:



38. A PLC output can be:



39. Digital electronics use:



40. Industrial sensors convert physical quantity into:



41. H-bridge circuits are used to:



42. Logic families include:



43. Industrial electronics reduces:



44. A SCR gate turn-off requires:



45. Opto-isolators are used for:



46. A bistable multivibrator is:



47. Industrial electronics controllers improve:



48. A logic XOR gate output is “1” when:



49. Digital timers in industrial circuits are used for:



50. PLC programming languages include:



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