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Discussion :: GATE Mining Engineering

  1. An emulsion explosive of specific gravity 1.25 is used for blasting in an iron ore formation having P-wave velocity of 3000 m/s and specific gravity of 3.20. For an explosive impedance to rock impedance ratio of 0.5, the desired velocity of detonation of the explosive in m/s is
    2. A.
    3840
    B.
    4000
    C.
    4200
    D.
    7680

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    Answer : Option A

    Explanation :

    -NA-

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