SSC General Science & Technology Sample Paper NCERT Sample Paper-3

  • question_answer
    Consider the following statement regarding Geo Augumented Navigation System (GAGAN):
    1. GAGAN is a satellite based navigation system that will serve as a low cost substitute for Instrument Landing System
    2. Once it is implemented India would be the fourth nation in the world to have a satellite based navigation system after USA, Japan and European consortium. Which of the statement(s) given above is/are correct?

    A)  Only 1 

    B)  Only 2

    C)  Both 1 and 2

    D)  neither 1 nor 2

    Correct Answer: C

    Solution :

    [c] GAGAN is a planned implementation of a regional Satellite-Based Augmentation System (SBAS) by the Indian Government. GAGAN will provide a precision of 1.5 - meter accuracy in the horizontal plane, 2.5 - meter in the vertical. This is the same as the FAA system. However, to account for possible worst-case positioning errors in civil aviation, a much rougher figure of about 15 meters horizontal will be used. In addition to using GPS signals, GAGAN will be able to use timing and positioning signals from GLONASS and the proposed GALILEO Navigation Satellite System.

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