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IoT Technician (Smart City) Practice Test: Sensors, transducers and control circuits
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Related: IoT Technician (Smart City) Practice Test: Analog and digital circuits

IoT Technician (Smart City) Practice Test: Sensors, transducers and control circuits
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25 Questions

1. What do a rectifier do?
2. How photo electric proximity sensor senses obstacle?
3. Select the control system which does not has the feedback loop.
4. What is the main advantage of capacitive transducer?
5. Output of an inverting amplifier is            
6. What type of output is generated from a Frequency to voltage (V/F) converter?
7. An active transducer converts energy by
8. What is the main advantage of a thermocouple?
9. What is the main principle of operation of an capacitive transducer?
10. What is the purpose of thermocouples?
11. A load cell converts ................
12. What is the application of an proximity sensor?
13. Out put current of a voltage amplifier is
14. What is the main disadvantage of inductive transducer?
15. A passive transducer converts energy by
16. What is the main use of signal generator?
17. Eddy current generated on a conductor because of ................
18. Why Analog to digital converter is introduced in a control circuit?
19. Why shielding is required in the time of using LVDT?
20. What can a strain gauge measure?
21. What is gauge factor?
22. In a close loop control system, error signal is the deference of ................
23. A transducer converts ................
24. In a close loop control system, input is dependent on              
25. An ideal transducer must be ................

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