Mining Geology - Mining Geology, Mine Development and Surveying - Mining Engineering Previous Year Questions

1

2007 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2007

The relationship between alumina and silica is

A

positive linear

B

exponential

C

negative linear

D

random

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2

2007 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2007

The grade of copper (%) at point A using the inverse distance weighting method is

A

0.47

B

0.58

C

0.61

D

1.20

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3

2008 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2008

Q.15 The grain size distribution of soil is known as

A

Permeability

B

Structure

C

Porosity

D

Texture

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4

2008 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2008

An assay value of alumina in a borehole from a bauxite deposit is as shown below. If the cut-off grade is 40%, the composite value of ore in the borehole in percent is

A

31.6

B

33.9

C

41.7

D

42.2

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5

2008 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2008

The direction of true dip of the seam is

A

S 15° W

B

S 25° W

C

S 15° E

D

S 30° E

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6

2008 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2008

The gradient of the seam is

A

1 in 2.7

B

1 in 3.7

C

1 in 4.7

D

1 in 5.7

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7

2010 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2010

The void ratio is

A

0.91

B

0.84

C

0.78

D

0.69

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8

2011 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2011

A scatter plot prepared using a set of values of lead and zinc from a lead-zinc deposit is shown in figure below. The value of correlation coefficient is

A

1.0

B

0.7

C

0.5

D

0

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9

2011 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2011

Proximate analysis of 50 g of a coal sample shows the following:
Moisture = 0.80 g
Ash = 7.85 g
Volatile matter = 15.90 g
The fixed carbon in percentage on a dry, ash free basis is

A

83

B

66

C

55

D

45

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10

2012 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2012

The chip sampling data, spaced irregularly for a gold vein deposit, are shown in figure. The sample points have equal influence on both the sides.

Distance of sample from starting point (m)	2	8	10	16
Width (cm)	70	80	60	100
Assay (g/te)	5	7	6	4

The mean assay value in g/te is

A

6.52

B

5.50

C

5.19

D

4.50

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11

2013 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2013

In the Moh’s scale of hardness, the minerals in increasing sequence of hardness are

A

calcite, gypsum, topaz, diamond

B

topaz, gypsum, calcite, diamond

C

calcite, gypsum, diamond, topaz

D

gypsum, calcite, topaz, diamond

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12

2013 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2013

The pressure on a phreatic surface is

A

less than atmospheric pressure

B

greater than atmospheric pressure

C

equal to atmospheric pressure

D

independent of atmospheric pressure

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13

2014 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2014

A piece of coal sample weighs 10 kg in air and 2 kg when immersed in water. The specific gravity of the coal sample is __________

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14

2014 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2014

In a borehole log of 1.2 m in length, recovery of rock cores in cm is given below

20, 8, 15, 8, 8, 4, 3, 9, 10, 1, 5, 10

The RQD in percentage is

A

29.2

B

31.8

C

45.8

D

50.0

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15

2016 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2016

The semivariogram shown belongs to a bauxite deposit. The expected difference in the Al\(_2\)O\(_3\) (%) values between two boreholes separated by a distance of 200 m is ______.

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16

2016 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2016

The composited grade value, in %, between the RLs 10 m to 20 m for the following borehole configuration is__________.

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17

2017 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2017

A sandstone sample having 15% moisture content and volume of 75 cm³ weighs 180 g. If the grain density is 2.6 g/cm³, porosity of the sample in % is __________

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18

2018 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2018

Two contours of RL 60 m and 70 m are separated by 34 m measured along dip of the seam. The dip of the seam in degree is ______________.

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19

2018 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2018

The grade values of alumina at three sample locations (A, B and C) in a bauxite deposit are as shown. Using the ‘inverse distance’ method, the computed grade in % alumina at location ‘Z’ is __________.

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20

2019 · Mining Engineering · Mining Geology, Mine Development and Surveying · Mining Geology

Mining Engineering (MN) 2019

If the figures A and B represent contour plots in a terrain, then the correct statement is

A

Fig. A shows ridge and Fig. B shows valley

B

Fig. A shows anticline and Fig. B shows syncline

C

Fig. A shows syncline and Fig. B shows anticline

D

Fig. A shows valley and Fig. B shows ridge

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