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Mining Engineering · all questions

Mining Geology
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Wear and tear of exposed country rocks called

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The specific gravity of coal is heighest in

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When crystal breaks independently of cleavage plane called

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An example for basic rocks of intermediate rock of igneious rocks.

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Mural joints are develop in

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Generally size of raw coal fed to jig washer is

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Aggregate of chemical elements called

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Colour of China clay

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Hardness of Augite

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The past history of earth can be known by

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Alluminium occurs in

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The chemical combination of muscavite mica

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Example of occurance of minerals in two or more elements.

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Ores useually occurs in

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Calorific value of lignite is

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Coal, when heated in the absence of air to a temperature above 600°C, from solid residue called

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Hardness of Dolomite

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UHV of 'D' grade coal in KCal/kg.

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Orthoclase hardness number

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Rock for mining minerals have specific gravity between . . . . . . . .

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