Engineering Geology - Advanced topics in Geology - Geology & Geophysics Previous Year Questions

1

2009 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2009

__________ dams are constructed where the foundation rock is strong.

A

Gravity

B

Arch

C

Buttress

D

Earth

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2

2011 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2011

The slow, permanent and continuous deformation of materials under constant load is called

A

strain hardening

B

stress stiffening

C

work hardening

D

creep

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3

2012 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2012

Which one amongst the following rocks commonly has highest unconfined compressive strength?

A

Coarse-grained sandstone

B

Mica schist

C

Fossiliferous limestone

D

Massive basalt

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4

2013 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2013

Which of the following is a type of dam?

A

Anchor

B

Shotcrete

C

Geogrid

D

Buttress

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5

2013 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2013

The point P represents

A

uniaxial tensile strength.

B

uniaxial compressive strength.

C

indirect tensile strength.

D

shear strength.

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6

2014 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2014

The best match of terms in Group I with those in Group II is Group I (P) Alkali reaction (Q) Arching (R) Rip rap (S) Clay core Group II (1) Tunnelling in hard rocks (2) Earth dam (3) Concrete aggregate (4) Surface slope protection (5) Concrete gravity dam

A

P-4; Q-5; R-1; S-3

B

P-5; Q-4; R-2; S-3

C

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

D

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

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7

2014 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2014

Which one of the following is the best suited mining method for a low-dipping, tabular-shaped, hard and compact ore body with 2 to 2.5 m thickness sandwiched between hard and compact roof and floor rock?

A

Cut and fill method

B

Shrinkage stope method

C

Open stope method

D

Caving method

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8

2016 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2016

If tangent Young's modulus (at 50% of the uniaxial compressive strength) and modulus ratio of a rock are given as 60 GPa and 500, respectively, the uniaxial compressive strength of the rock is __________ MPa.

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9

2022 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2022

The Hoek-Brown failure envelope is typically the segment of which one of the following?

A

Straight line

B

Ellipse

C

Parabola

D

Hyperbola

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10

2022 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2022

Which of the following parameter(s) is/are Rock Mass Rating (RMR) based on?

A

Rock Quality Designation

B

Uniaxial compressive strength of intact rock

C

Groundwater conditions

D

Rock composition

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11

2024 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2024 [Session 1]

A cylindrical sample of granite (diameter = 54.7 mm; length = 137 mm) shows a linear relationship between axial stress and axial strain under uniaxial compression up to the peak stress level at which the specimen fails. If the uniaxial compressive strength of this sample is 200 MPa and the axial strain corresponding to this peak stress is 0.005, the Young’s modulus of the sample in GPa is ______ (in integer).

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12

2024 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2024 [Session 1]

The support pressure of 20 kPa is required to stabilize the loose blocks of the Excavation Disturbed Zone (EDZ) at the crown of a circular tunnel with horizontal axis. The EDZ is to be stabilized by inserting rock bolts vertically into the roof. If the working capacity of a bolt is 160 kN, the area of the roof supported by a single bolt in m² is __________ (in integer).

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13

2024 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2024 [Session 1]

Which one of the following openings is a type of decline in underground mines?

A

Crosscut

B

Winze

C

Spiral tunnel

D

Drift

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14

2024 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2024 [Session 1]

The in situ stress at a point in a dry sandstone terrain is as follows: σ₁ = 12 MPa and σ₃ = 4 MPa. The pore water pressure (p_w) increases by the construction of a reservoir. The failure criterion of the sandstone is given by σ₁' = 3.48 MPa + 3σ₃', where σ₁' and σ₃' are the effective maximum and minimum principal stresses, respectively. Assuming that the failure occurs at peak stress, the minimum value of p_w (in MPa) that will cause the sandstone to fail in situ is __________ (rounded off to two decimal places).

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15

2025 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2025 [Session 1]

A hillslope is shown below. If the area over the failure plane is 50 m² and the weight of the hillslope material (W) is 2000 tons, the Factor of Safety (FOS) for this hillslope in dry conditions is __________
(Cohesion along failure plane = 196 KPa, dip of failure plane = 60°, and internal friction angle = 30°).
(Round off to two decimal places)

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16

2025 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2025 [Session 1]

Which of the following factors will REDUCE the chances of landslide failure?

A

Increase in shear stress

B

Increase in water content of pore spaces

C

Increase in angle of internal friction

D

Increase in cohesion of soil grains

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17

2025 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2025 [Session 2]

A hillslope is shown below. If the area over the failure plane is 50 m² and the weight of the hillslope material (W) is 2000 tons, the Factor of Safety (FOS) for this hillslope in dry conditions is ______
(Cohesion along failure plane = 196 KPa, dip of failure plane = 60°, and internal friction angle = 30°).
(Round off to two decimal places)

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18

2017 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2017

Los Angeles abrasion test was conducted for a granite aggregate with an initial weight of 4800 grams. After the test, the aggregate weighed 3504 grams. The Los Angeles abrasion value is__________ %.

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19

2017 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2017

Brazilian test was conducted on a rock sample having radius of 27 mm and thickness of 22 mm. The failure load was 5 kN. The tensile strength of the rock is __________ N/mm².

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20

2018 · Geology & Geophysics · Advanced topics in Geology · Engineering Geology

Geology & Geophysics (GG) 2018

Which one of the following statements is CORRECT?

A

Strength of a rock decreases with increase in confining pressure.

B

Strength of a rock increases with increase in temperature.

C

Strength of a rock increases with increase in strain rate.

D

Strength of a rock increases with increase in pore water pressure.

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