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    • BPSC MDO EXAM-2021 MINING PAPER

    BPSC MDO EXAM-2021 MINING PAPER

    • 21-04-2022
    • 4011
    • 0

    BIHAR PUBLIC SERVICE COMMISSION MINERAL DEVELOPMENT OFFICER EXAM (MINING PAPER) -2021

    1.        Write on the following in short :

    a)       Drillability of rocks

    b)       Slake durability

    c)       Origin and distribution of coal deposits

    d)       Contour line

    e)       Locked coil rope

    f)        Concept of ore liberation

    g)       Cutoff grade

    h)       Ultimate pit limit

     

    2.       a)   Derive & formula for horizontal and vertical distance determined by stadia tacheometry with the condition of staff held vertical.

    b)  Describe prismatic compass with neat sketch.

    3.       Explain the whole process of preparation of EMP for an upcoming new open-cast project of coal deposit

    4.       a)   Explain the influence of joints on slope stability.

    b)   Explain the procedure for construction of great circle by using the stereographic projection with required sketches.

    5.       a)   Define the terms mineral inventory and ‘ore reserve’

    Explain about grade tonnage curves and its computations.

    6.  Explain with neat and labelled sketch, the arrangement and working of a diamond wire saw suitable for marble block production.

    7.    a)    Write a note on latest amendment made in CMR -2017.

           b)    Write about the power of Inspector of Mine as per the Mines as per the Mines Act, 1952.

    8.    a)   What are the salient features mentioned under UNFC method of computing reserve estimation?

            b)   What do you understand by ‘reduction ratio’? Specify its importance on processing efficiency.



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