MCQ in Wire and Wireless Communications System Part 1 – Answers

Below are the answers key for the Multiple Choice Questions in Wire and Wireless Communications System Part 1.

1. 10 to 1000 µW

2. 1000 and 3000 Hz

3. 250 and 500 Hz

4. volume unit meter

5. 0 dBm = 0 V.U.

6. 300 to 3400 Hz

7. AWG # 19

8. 1300 Ω

9. 0.51 dB/1000 ft.

10. 4 kHz

11. Reflectometer

12. An undesired self-sustained oscillation in a system, generally caused by excessive positive feedback.

13. IF stage

14. sensitivity

15. Two-way simultaneous transmission

16. A line or circuit interconnecting several situations.

17. Attenuator

18. Roaming

19. MIN

20. 25

21. Electrolytic recording

22. Skewing

23. A device that converts electric signals into audio signals, enabling data to be transmitted over the public telephone network via a conventional telephone handset

24. Crosstalk

25. Capture effect

26. Hybrid circuit

27. Decision

28. Jaynes maximum entropy principle

29. Estimation

30. Discrete channel

31. 1.88 – 1.90 GHz

32. 12

33. 120

34. DC, but may have either polarity positive DC

35. A switching system that lets a large number of telephone or data processing subscribers use a lesser number of transmission lines or a narrow bandwidth

36.  This is normal.

37. Operated in the nonlinear region

38. A permanent circuit for a private use within a communication network

39. Only the stronger will appear in the AF output

40. 1983

41. 1000

42. 6000 Hz

43. 833

44. GFSK

45. 10 mW

46. 3

47. Pilot carrier signals

48. 547 Ω

49. 424 Ω

50. Zero

Questions and Answers in Wire and Wireless Communications System Series

Following is the list of multiple choice questions in this brand new series:

Complete List of MCQ in Communications Engineering per topic

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