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Mining Geology(6)Mine Development(15)Mine Surveying(19)

Mining Geology

6 Questions

GATE→2026→Mining Geology, Mine Development and Surveying→Mining Geology

Q1

MCQ[1 Mark]

As per the Mohs scale of hardness, the correct sequence is

(A)

Topaz > Quartz > Calcite > Talc

(B)

Quartz > Topaz > Calcite > Talc

(C)

Quartz > Topaz > Talc > Calcite

(D)

Topaz > Calcite > Quartz > Talc

Explanation

GATE→2026→Mining Geology, Mine Development and Surveying→Mining Geology

Q2

MCQ[1 Mark]

The igneous intrusion along the bedding plane of the coal seam, as indicated by P, is known as

(A)

dyke

(B)

washout

(C)

sill

(D)

seam split

Explanation

GATE→2026→Mining Geology, Mine Development and Surveying→Mining Geology

Q3

MCQ[2 Marks]

Match the type of rock with its metamorphic form.

(A)

P \rightarrow 4, Q \rightarrow 3, R \rightarrow 1, S \rightarrow 2

(B)

P \rightarrow 3, Q \rightarrow 1, R \rightarrow 4, S \rightarrow 2

(C)

P \rightarrow 4, Q \rightarrow 3, R \rightarrow 2, S \rightarrow 1

(D)

P \rightarrow 3, Q \rightarrow 4, R \rightarrow 2, S \rightarrow 1

Explanation

GATE→2025→Mining Geology, Mine Development and Surveying→Mining Geology

Q4

MCQ[2 Marks]

Match the type of deposit with the corresponding process of formation

(A)

P-III, Q-I, R-IV, S-II

(B)

P-II, Q-IV, R-I, S-III

(C)

P-III, Q-II, R-I, S-IV

(D)

P-IV, Q-III, R-II, S-I

Explanation

GATE→2023→Mining Geology, Mine Development and Surveying→Mining Geology

Q5

MCQ[1 Mark]

The fault pattern shown in the figure is a case of

(A)

Normal fault.

(B)

Reverse fault.

(C)

Strike slip fault.

(D)

Oblique slip fault.

Explanation

GATE→2022→Mining Geology, Mine Development and Surveying→Mining Geology

Q6

MCQ[1 Mark]

Match the rock with its metamorphosed form

(A)

P-II, Q-IV, R-I, S-III

(B)

P-III, Q-I, R-IV, S-II

(C)

P-IV, Q-III, R-I, S-II

(D)

P-II, Q-III, R-IV, S-I

Explanation

Mine Development

15 Questions

GATE→2026→Mining Geology, Mine Development and Surveying→Mine Development

Q7

MCQ[1 Mark]

The best combination of explosive and initiation system for underwater blasting for rock breakage is

(A)

ANFO and electric detonator

(B)

emulsion and non-electric detonator

(C)

HANFO and safety fuse

(D)

PETN and electronic detonator

Explanation

GATE→2026→Mining Geology, Mine Development and Surveying→Mine Development

Q8

MCQ[1 Mark]

The firing sequence in a drivage is shown. The charge per hole for Sections 1, 2, and 3 are 2.0 kg, 3.0 kg, and 1.0 kg, respectively, and the delay between each section is 25 milliseconds. The maximum charge per delay, in kg, is

(A)

8.0

(B)

12.0

(C)

20.0

(D)

28.0

Explanation

GATE→2026→Mining Geology, Mine Development and Surveying→Mine Development

Q9

MCQ[2 Marks]

Match the shaft sinking method with its applicability.

(A)

P \rightarrow 2, Q \rightarrow 3, R \rightarrow 4, S \rightarrow 1

(B)

P \rightarrow 4, Q \rightarrow 1, R \rightarrow 2, S \rightarrow 3

(C)

P \rightarrow 2, Q \rightarrow 1, R \rightarrow 4, S \rightarrow 3

(D)

P \rightarrow 4, Q \rightarrow 3, R \rightarrow 2, S \rightarrow 1

Explanation

GATE→2025→Mining Geology, Mine Development and Surveying→Mine Development

Q10

NAT[1 Mark]

An HMX explosive having Velocity of Detonation (VOD) of $10500\text{ m/s}$ is tested by D'Autriche method with a detonating fuse of VOD $7000\text{ m/s}$, as shown in the figure. The impression mark on lead plate will be obtained at a distance (L), in m, from the midpoint of the fuse, is

Explanation

GATE→2025→Mining Geology, Mine Development and Surveying→Mine Development

Q11

NAT[2 Marks]

In a surface mine, blasting is carried out using electronic detonator and cartridge emulsion explosive with following details: Burden = 3.5 m, Spacing = 4.5 m, Bench height = 10.0 m, Subgrade drilling = 1.0 m, Stemming = 4.0 m, Linear charge concentration = 16 kg/m, Cost of one detonator = Rs. 800, Cost of explosive = Rs. 30/kg. The cost of blasting material per cubic meter of blasted rock, in Rs., is (rounded off to 2 decimal places)

Explanation

GATE→2024→Mining Geology, Mine Development and Surveying→Mine Development

Q12

NAT[1 Mark]

An explosive with a density of $1.2\text{ g/cm}^{3}$ has a heat of explosion equal to $900\text{ cal/g}$. If the heat of explosion of ANFO with density of $0.8\text{ g/cm}^{3}$ is $950\text{ cal/g}$ the bulk strength of the explosive relative to ANFO is

Explanation

GATE→2024→Mining Geology, Mine Development and Surveying→Mine Development

Q13

NAT[1 Mark]

In a VCR stope, blast holes of 165 mm diameter are drilled. For the blast hole to behave as a spherical charge, the maximum charge length, in m, is

Explanation

GATE→2024→Mining Geology, Mine Development and Surveying→Mine Development

Q14

NAT[1 Mark]

A rectangular development heading of dimension $3\text{ m}\times2.8$ m is to be blasted with holes of 2.4 m in length. If the pull factor is 0.95 and swell factor is 1.20, the volume of blasted rock per round, in $\text{m}^{3}$, is

Explanation

GATE→2023→Mining Geology, Mine Development and Surveying→Mine Development

Q15

MCQ[1 Mark]

The blast pattern of a coal face shown in the figure represents

(A)

burn cut.

(B)

pyramid cut.

(C)

wedge cut.

(D)

drag cut.

Explanation

GATE→2023→Mining Geology, Mine Development and Surveying→Mine Development

Q16

NAT[2 Marks]

A surface mine blast pattern has spacing 4 m and burden 3 m. The diameter of the drill hole is 110 mm. The drilling length is 8.8 m including subgrade of 10%. The bulk explosive density is $900\text{ kg}/\text{m}^{3}$. If the powder factor is $2.5\text{ m}^{3}/\text{kg}$, the charge length in m is [rounded off to 2 decimal places]

Explanation

GATE→2022→Mining Geology, Mine Development and Surveying→Mine Development

Q17

MCQ[1 Mark]

The drilling technique applicable for mineral exploration is

(A)

Percussive drilling

(B)

Tricone roller drilling

(C)

Rotary-percussive drilling

(D)

Diamond core drilling

Explanation

GATE→2022→Mining Geology, Mine Development and Surveying→Mine Development

Q18

MCQ[1 Mark]

A square pattern of blasting is shown in the figure. For the case of simultaneous blast, identify the zone of no fragmentation

(A)

P

(B)

Q

(C)

R

(D)

S

Explanation

GATE→2022→Mining Geology, Mine Development and Surveying→Mine Development

Q19

MCQ[2 Marks]

Match the drilling pattern with mining operation

(A)

P-II, Q-III, R-I, S-IV

(B)

P-III, Q-IV, R-I, S-II

(C)

P-II, Q-I, R-IV, S-III

(D)

P-III, Q-IV, R-II, S-I

Explanation

GATE→2022→Mining Geology, Mine Development and Surveying→Mine Development

Q20

NAT[2 Marks]

Following information is given for a drilling operation to be carried out for overburden removal in a surface mine... The amount of explosive per unit length of charge in kg/m is

Explanation

GATE→2022→Mining Geology, Mine Development and Surveying→Mine Development

Q21

NAT[2 Marks]

The oxygen-balanced equation for explosive ANFO is given below. $3NH_{4}NO_{3}+CH_{2}\rightarrow 7H_{2}O+CO_{2}+3N_{2}$. For 100 litre of fuel oil having density $850\text{ kg}/\text{m}^{3}$ the amount of ammonium nitrate to be mixed, in kg, is

Explanation

Mine Surveying

19 Questions

GATE→2026→Mining Geology, Mine Development and Surveying→Mine Surveying

Q22

MCQ[1 Mark]

In remote sensing, the order of the wavelength bands of electromagnetic radiation used for data acquisition is

(A)

Visible < Near Infrared < Thermal Infrared < Microwave

(B)

Thermal Infrared < Near Infrared < Visible < Microwave

(C)

Microwave < Near Infrared < Thermal Infrared < Visible

(D)

Near Infrared < Thermal Infrared < Microwave < Visible

Explanation

GATE→2026→Mining Geology, Mine Development and Surveying→Mine Surveying

Q23

NAT[1 Mark]

A circular curve having radius of curvature 1000 m is set out by connecting two straights with a deflection angle of $60^{\circ}$. The apex distance, in m, is

Explanation

GATE→2026→Mining Geology, Mine Development and Surveying→Mine Surveying

Q24

MCQ[2 Marks]

The observations from a correlation survey are shown. If coordinates of C and D are (East: 375 m, North: 1120 m) and (East: 376 m, North: 1121 m), the whole circle bearing of the line EF is

(A)

215^\circ 19^\prime 59.6^{\prime\prime}

(B)

35^\circ 19^\prime 59.6^{\prime\prime}

(C)

215^\circ 20^\prime 1.4^{\prime\prime}

(D)

35^\circ 20^\prime 1.4^{\prime\prime}

Explanation

GATE→2026→Mining Geology, Mine Development and Surveying→Mine Surveying

Q25

NAT[2 Marks]

Following observations were taken using a Tacheometer with staff held vertical. Additive and multiplying constants are 0 and 100. The reduced level (RL) of staff station R, in m, is

Explanation

GATE→2025→Mining Geology, Mine Development and Surveying→Mine Surveying

Q26

MCQ[1 Mark]

A non-transit theodolite does NOT have

(A)

Vernier scale

(B)

face-left and face-right options

(C)

spirit level

(D)

cross-hair

Explanation

GATE→2025→Mining Geology, Mine Development and Surveying→Mine Surveying

Q27

MCQ[1 Mark]

Match the source of error with the corresponding correction in surveying with steel tape.

(A)

P->1, Q->2, R->3

(B)

P->1, Q->3, R->2

(C)

P->2, Q->3, R->1

(D)

P->2, Q->1, R->3

Explanation

GATE→2025→Mining Geology, Mine Development and Surveying→Mine Surveying

Q28

MCQ[2 Marks]

Based on the theodolite survey for a closed traverse PQRS, the following bearings are observed for the sides of the traverse... The interior angles at P and R respectively are

(A)

45^{\circ}00^{\prime},\; 115^{\circ}00^{\prime}

(B)

70^{\circ}00^{\prime},\; 65^{\circ}00^{\prime}

(C)

135^{\circ}00^{\prime},\; 90^{\circ}00^{\prime}

(D)

250^{\circ}00^{\prime},\; 115^{\circ}00^{\prime}

Explanation

GATE→2025→Mining Geology, Mine Development and Surveying→Mine Surveying

Q29

NAT[2 Marks]

A pit slope has the following information: Number of benches = 5, Height of each bench = 8 m, Bench slope angle = 70 degree. If width of one bench is 24 m and that of other four benches is 10 m each, the overall pit slope angle, in degree, is (rounded off to 2 decimal places)

Explanation

GATE→2025→Mining Geology, Mine Development and Surveying→Mine Surveying

Q30

NAT[2 Marks]

Reciprocal levelling is performed for points P and Q by placing the same levelling instrument at A and B. The observations of staff readings are tabulated as below... If the Reduced Level (RL) of P is 115.246 m, then the true RL of Q, in m, is (rounded off to 3 decimal places)

Explanation

GATE→2024→Mining Geology, Mine Development and Surveying→Mine Surveying

Q31

MCQ[1 Mark]

Match the following features with the corresponding symbols in mine plan

(A)

P->1; Q->3; R->4; S->2

(B)

P->4; Q->2; R->1; S->3

(C)

P->2; Q->4; R->3; S->1

(D)

P->4; Q->3; R->2; S->1

Explanation

GATE→2024→Mining Geology, Mine Development and Surveying→Mine Surveying

Q32

MCQ[2 Marks]

In a closed traverse, ABC, bearings and lengths given. The missing quantities are...

(A)

A

(B)

B

(C)

C

(D)

D

Explanation

GATE→2024→Mining Geology, Mine Development and Surveying→Mine Surveying

Q33

NAT[2 Marks]

In a tacheometry survey, the readings observed are given... The length of the line AB in m, is

Explanation

GATE→2023→Mining Geology, Mine Development and Surveying→Mine Surveying

Q34

MCQ[1 Mark]

Match the following items with their respective contours

(A)

P->1, Q->3, R->2

(B)

P->3, Q->1, R->2

(C)

P->2, Q->3, R->1

(D)

P->2; Q->1; R->3

Explanation

GATE→2023→Mining Geology, Mine Development and Surveying→Mine Surveying

Q35

MCQ[1 Mark]

In an astronomical survey at a given station, the pole star is located at an angle of $27^{\circ}$ from the horizon. The latitude of the survey station in degrees is

(A)

27^{\circ}N

(B)

63^{\circ}N

(C)

27^{\circ}S

(D)

63^{\circ}S

Explanation

GATE→2023→Mining Geology, Mine Development and Surveying→Mine Surveying

Q36

MCQ[1 Mark]

The position tracking of a point by GPS is based on the technique of

(A)

Graphical resection.

(B)

Analytical resection.

(C)

Triangulation.

(D)

Trilateration.

Explanation

GATE→2023→Mining Geology, Mine Development and Surveying→Mine Surveying

Q37

MCQ[2 Marks]

Match the following devices with their intended applications.

(A)

P->1; Q->2; R->3; S->4

(B)

P->4; Q->3; R->1; S->2

(C)

P->3; Q->4; R->2; S->1

(D)

P->4; Q->3; R->2; S->1

Explanation

GATE→2023→Mining Geology, Mine Development and Surveying→Mine Surveying

Q38

NAT[2 Marks]

Coordinate of two points A and B are (E 0 m, N 200 m) and (E 300 m, N 200 m), respectively. The bearing of two lines AO and BO are $67^{\circ}$ and $35^{\circ}$, respectively. The easting of point O, in m, is [rounded off to 2 decimal places]

Explanation

GATE→2022→Mining Geology, Mine Development and Surveying→Mine Surveying

Q39

NAT[1 Mark]

In a levelling survey, a reading is taken as 2.25 m. However, along the line of sight there is deflection of 20 cm with respect to vertical position of the staff. The correct reading, in m is

Explanation

GATE→2022→Mining Geology, Mine Development and Surveying→Mine Surveying

Q40

NAT[2 Marks]

The shaft-top coordinates of two vertical shafts... The downward gradient of the line joining the bottom of the two shafts in degrees, is

Explanation