logo

CuriousTab

CuriousTab

Discussion

Home ‣ Electronics and Communication Engineering ‣ Satellite Communication Comments
  • Question

  • Space communication links are being increasingly moved into Ka-band (200-30 GHz) because it


  • Options
  • A. offers a much wider available bandwidth
  • B. does not suffer from atmospheric at tenuation
  • C. permits the use of smaller antenna
  • D. does not suffer from rain attenuation

  • Correct Answer
  • offers a much wider available bandwidth 

    • Satellite Communication problems

    Search Results

    • 1. Depending on the technique used, digitized television requires a bit rate between __________ millions.

    • Options
    • A. 40 and 92.5
    • B. 25 and 60
    • C. 30 and 82.5
    • D. 2
      • Discuss
    • 2. In the context of error detection in satellite transmission, ARQ stands for

    • Options
    • A. Automatic Repeat Request
    • B. Automatic Relay Request
    • C. Accelerated Recovery Request
    • D. Automatic Radiation Quenching
      • Discuss
    • 3. A telephone user while talking to a person via a satellite has to wait for reply for about __________ millisecond.

    • Options
    • A. 100
    • B. 270
    • C. 470
    • D. 540
      • Discuss
    • 4. Master control facility (MCF) for INSAT-2 series satellites is located at

    • Options
    • A. Madras
    • B. New Delhi
    • C. Leh
    • D. Hassan
      • Discuss
    • 5. APPLE was into orbit on 19 th June 1981 by European Space Agency (ESA) from

    • Options
    • A. Cape Canaveral in Florida
    • B. Kourou in French Guyana
    • C. Canarvon in Western Australia
    • D. Bangalore in South India
      • Discuss
    • 6. A thyristor needs protection against

    • Options
    • A. high
    • B. high
    • C. both high and high
    • D. either high or high
      • Discuss
    • 7. All inverters use forced commutation.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. Assertion (A): A dual converter may be circulating current type or non circulating current type.

      Reason (R): In circulating current dual converter only one converter can be operated at one time.


    • Options
    • A. Both A and R are correct and R is correct explanation of A
    • B. Both A and R correct but R is not correct explanation of A
    • C. A is correct but R is wrong
    • D. A is wrong but R is correct
      • Discuss
    • 9. The two modes of operation of three phase bridge inverters are known as

    • Options
    • A. 60° mode and 120° mode
    • B. 90° mode and 120° mode
    • C. 120° mode and 180° mode
    • D. 120° mode and 240° mode
      • Discuss
    • 10. A single phase step up cycloconverter changes 50 Hz to 100 Hz. Then one half wave of input will give rise to

    • Options
    • A. one half wave of output
    • B. one full wave of output
    • C. two full waves of output
    • D. either (b) or (c)
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.