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Civil Engineering :: Elements of Remote Sensing

Elements of Remote Sensing - Section 1
Elements of Remote Sensing - Section 2
Elements of Remote Sensing - Section 3
Elements of Remote Sensing - section-4

  1. Pick up the correct statement from the following:
    2. A.

    The wave length of gamma rays is 10-10 m
    B.

    The wave length of radio rays is 106 m
    C.

    The visible length occupies a small portion of the electromagntic spectrum extending roughly from 0.4 μ m to 0.7μm wave length.
    D.

    All of these

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  2. The various stages of formation of snow are listed below :
    1. Formation of ice crystals
    2. Formation of snow pallets
    3. Formation of snow flakes
    4. Formationof snow crystals
    5. Formation of rimed crystals
    Which one of the following sequences is correct ?

    3. A.

    3 2 5 1 4
    B.

    5 3 1 2 4
    C.

    1 4 3 5 2
    D.

    1 3 4 2 5

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  3. Snow consists of
    4. A.

    snow crystals
    B.

    rimed snow crystals
    C.

    snow flakes
    D.

    All of these

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  4. For perfect coherent radiation, which one of the following statement is correct?

    5. A.

    Both the waves must have single frequencies
    B.

    The directions of motion of both waves are parallel.
    C.

    The waves must be collimated
    D.

    All of these

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  5. Fresh and pure snow reflectance
    6. A.

    is very high in visible region
    B.

    falls off steeply in the near-IR region
    C.

    remains low for longer wave lengths
    D.

    All of these

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  6. Snow albedo is affected by :

    7. A.

    wave length
    B.

    grain size
    C.

    solar zenith angle
    D.

    snow pack thickness
    E.

    All of these

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