Metal Mining — Part 2 MCQs with Explanations

Double stoping is the correct answer to “If the stoping started on eiqhter side of rise winze connection called . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Shrinkage stoping is the correct answer to “The stoping method selected, where ore body is thick veins type ore and walls are strong and steeply dipping ore i.e. footwall steeper than angle of repose of broken ore is . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Bigger size ore from entering the bin is the correct answer to “Grizzly is used in ore bin to prevent.”. This question is standard in competitive examination syllabi for Metal Mining.

1972 is the correct answer to “Alimak raise climber introduced in India first time in the year . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Sub level is the correct answer to “The method employed, if the ore body is strong steeply dipping with strong host rock.”. This question is standard in competitive examination syllabi for Metal Mining.

Long hole is the correct answer to “The method of drop raising is an improvement over the method of raising through . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

1800 is the correct answer to “Mineral hoisting in one lift can be done upto the depth not exceeding . . . . . . . . meters.”. This question is standard in competitive examination syllabi for Metal Mining.

Level interval is the correct answer to “The vertical distance between two levels called as . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

10 - 15% is the correct answer to “Compressibility of sand fill by hydraulic stowing is . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

1842 is the correct answer to “In the form of a square pyramid blasted material of 7368 m 3 by volume is accommodated. The height of the pyramid is 2.4 m. Calculate surface area in m 2”. This question is standard in competitive examination syllabi for Metal Mining.

Block caving is the correct answer to “It is the mining method in which masses, panels or blocks of ore are under cut to induce caving, permetting the broken ore to be drawn off below.”. This question is standard in competitive examination syllabi for Metal Mining.

Grizzley is the correct answer to “An arrangement that prevents oversized rock to pass.”. This question is standard in competitive examination syllabi for Metal Mining.

Cut and fill is the correct answer to “The method of stoping selected in strong to weak, fairly steep are with weak host rock.”. This question is standard in competitive examination syllabi for Metal Mining.

1 in 100 and 1 in 150 is the correct answer to “The level roadways are dipping at a mild gredient between . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Groove is the correct answer to “Channel sampling also called . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Prevent displacement due to dilation of fractured wall rock is the correct answer to “In cut and fill stope the main purpose of back filling is to . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Sampling is the correct answer to “A small portion of the ore body collected and analysed to estimate the average mineral content of the ore body called . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Rise-winze is the correct answer to “Stoping is always started on each side of . . . . . . . . direction.”. This question is standard in competitive examination syllabi for Metal Mining.

All the above is the correct answer to “Cut and fill stoping can be done by . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

6 is the correct answer to “If the depth of the shaft exceeds 1000 m but not 1500 m, no winding rope shall be used or continued to use, if its factor of safety is becomes less than . . . . . . . . in metal mines.”. This question is standard in competitive examination syllabi for Metal Mining.

All the above is the correct answer to “In cut and fill stoping is done by . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Sub level is the correct answer to “The method of stoping suitable to extract thick ore body strong ore, stable handling and footwall steeply dipping ore is . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Cable bolting is the correct answer to “The friable rock in cut and fill method is supported by . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

2 or 3 is the correct answer to “The number of persons required for collection of samples in u/g.”. This question is standard in competitive examination syllabi for Metal Mining.

Capacity of loading equipment is the correct answer to “The sublevel interval does not depend on in metal mines.”. This question is standard in competitive examination syllabi for Metal Mining.

VCR is the correct answer to “In this method of stoping the large diameter downward parallel holes drilled for blasting.”. This question is standard in competitive examination syllabi for Metal Mining.

Beded deposits is the correct answer to “The channel sampling is applicable in . . . . . . . . to collect samples.”. This question is standard in competitive examination syllabi for Metal Mining.

Jaduguda uranium mine is the correct answer to “In India Alimak Raise climber introduced first time in which mine.”. This question is standard in competitive examination syllabi for Metal Mining.

Both A and B is the correct answer to “The technique of VRM is different from long hole mining from the point of view off”. This question is standard in competitive examination syllabi for Metal Mining.

None is the correct answer to “Black Iron ore is . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Widening the gallery is the correct answer to “Wide stall method procticed by . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Crown is the correct answer to “The pillar which is left for support of upper level during extraction called . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Hydrothermal is the correct answer to “Zinc deposit is formed by geological process is . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Raises is the correct answer to “Jack hammer assisted with air legs is used in drilling of . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Square set is the correct answer to “The method of stoping selected if the ore is very weak, moderately dipping with very weak host rock.”. This question is standard in competitive examination syllabi for Metal Mining.

Breast stoping is the correct answer to “The method of stoping successfully applied to all dips from horizontal to vertical.”. This question is standard in competitive examination syllabi for Metal Mining.

Sampling interval is the correct answer to “The interval between two sample places called . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Cut and fill is the correct answer to “In this method blast holes drilled in upward but not in ring fashion.”. This question is standard in competitive examination syllabi for Metal Mining.

15 - 20 m is the correct answer to “The limit for drivage of compartmental raising is . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.

Avoiding subsidance is the correct answer to “Main purpose of wide and stall method is . . . . . . . .”. This question is standard in competitive examination syllabi for Metal Mining.