Mining Engineering · all questions

Introduction to Mining Engineering
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Q361

In the above question, the panel OMS in tones is

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Q362

The provisions of Mines Act, 1952 shall not apply (except few sections) to any mine or part where not more than 'n' persons are employed on any day in connection with the excavation. 'n' is given by

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Q363

Barrier in between panels is preferably punctured at "A" number of places. A is given by

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Q364

To estimate appropriate air requirement in underground mine which of the following is true?

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Q365

No locomotive shall be used where the gradient of the track exceed

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Q366

The design, construction and layout of haul roads in opencast mines must satisfy which one of the following

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Q367

For O.B. removal with shovel - dumper combination, the optimum size of the dumper depends on

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Q368

Intrinsically safe apparatus is such an apparatus

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Q369

For an open pit mining the value of metal is Rs. 210 per kg, and recoverable grade is 1.2%. Production cost per tonne of ore inclusive of mining and processing but excluding stripping is Rs. 2000. If the break even stripping ratio is 3.49 m³/te, then the stripping cost is

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Q370

In horizon system of mining lateral are driven

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Q371

It eliminates drilling, blasting in opencast mines and has scope of selective mining. Identify the machine?

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Q372

The stoping method, where a large part of blasted ore is allowed to accumulate in the stope to serve the purpose of providing working platform for stoping as well as to support the wall-rock, is known as

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Q373

In a 4.2 m wide and 3.0 m high gallery in a coal seam, twelve shot holes are blasted per round. The holes are charged with 2 explosive cartridges of 435 g each. If the powder factor of the blast is 2.2 tonne/kg and specific gravity of coal is 1.4, the pull per round of blast in m is

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Q374

What is the rate of stone dust loading per meter of shelf length for heavy type barriers?

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Q375

The co-efficient of friction, Kilomurg (kμ) is the

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Q376

The minimum size of barrier in between two panels is

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Q377

Which of the following statement is true for panel system of working?

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Q378

The track gauge width used for direct rope haulage in underground coalmine is

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Q379

Reaction time of seismic detonators is

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Q380

'Soutirage' mining is the other name of

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