555 Timer and Analog Multipliers — MCQs – EE

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1. The 555 timer IC is widely used for which type of applications?



2. The 555 timer was invented by:



3. The 555 timer can operate in how many modes?



4. The three modes of operation of a 555 timer are:



5. In monostable mode, the 555 timer acts as a:



6. In astable mode, the 555 timer acts as a:



7. In bistable mode, the 555 timer acts as a:



8. The 555 timer IC contains how many comparators?



9. The control voltage pin of the 555 timer is:



10. The discharge pin of the 555 timer is:



11. The threshold pin is connected to the:



12. The trigger pin is connected to the:



13. The output pin of the 555 timer is:



14. The reset pin of the 555 timer is used to:



15. The 555 timer requires a DC supply voltage typically between:



16. In astable mode, the 555 timer produces:



17. The output current capability of a 555 timer is approximately:



18. The main timing elements in a 555 timer circuit are:



19. The duty cycle in a 555 timer’s astable mode depends on:



20. The analog multiplier performs what mathematical operation?



21. An analog multiplier is commonly used in:



22. The output of an analog multiplier is proportional to:



23. A four-quadrant analog multiplier can handle:



24. The Gilbert cell is a basic building block of:



25. The analog multiplier is often used in:



26. The main advantage of an analog multiplier is:



27. A 555 timer can be used with an analog multiplier to create a:



28. The analog multiplier is sometimes called a:



29. The accuracy of an analog multiplier mainly depends on:



30. 555 timers and analog multipliers are both classified under:



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