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Introduction to Geological Engineering MCQs Questions & Answers | Geological Engineering

Learn and practice multiple-choice questions (MCQs) with answers related to Introduction to Geological Engineering. These resources are available for Geological engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Introduction to Geological Engineering chapter is particularly important for students studying Geological engineering. Page-7 section-1

61
Which of the following rocks is classified as metamorphic?
Discuss
Answer & Solution
Answer: Option A
Solution:
Marble forms when limestone undergoes metamorphism, involving heat and pressure.This process alters its texture and increases strength, making it suitable for construction and sculpture.Correct Answer: Marble.
62
What does RQD (Rock Quality Designation) measure?
Discuss
Answer & Solution
Answer: Option C
Solution:
RQD is a percentage representing the quality of rock core recovery during drilling.It evaluates the degree of jointing and fracture in the rock mass.Correct Answer: Quality of rock core recovery.
63
What does the term 'strike' refer to in structural geology?
Discuss
Answer & Solution
Answer: Option C
Solution:
Strike is the direction of the line formed by the intersection of a rock layer with a horizontal plane.It is always perpendicular to the dip direction.Correct Answer: Horizontal line on an inclined surface.
64
Which of the following rocks has the highest porosity?
Discuss
Answer & Solution
Answer: Option A
Solution:
Pumice is a highly porous volcanic rock formed by the rapid cooling of frothy lava.It contains many gas bubbles, making it lightweight and very porous.Correct Answer: Pumice.
65
What is the main feature of an aquifer?
Discuss
Answer & Solution
Answer: Option C
Solution:
An aquifer is a rock or soil layer that can store and transmit significant quantities of groundwater due to its high permeability.Correct Answer: High permeability.
66
What does a geological cross-section represent?
Discuss
Answer & Solution
Answer: Option C
Solution:
A geological cross-section is a vertical representation that illustrates the arrangement of geological units below the surface.It helps interpret stratigraphy and structures like folds and faults.Correct Answer: A vertical slice showing subsurface geology.
67
Which of the following geophysical methods is most suitable for locating underground water?
Discuss
Answer & Solution
Answer: Option B
Solution:
Electrical resistivity method helps detect water-bearing formations due to their lower resistance compared to dry rocks or compacted soil.Correct Answer: Electrical resistivity.
68
Which material is considered impermeable in engineering geology?
Discuss
Answer & Solution
Answer: Option A
Solution:
Clay has very low permeability due to its fine grain size and plate-like particles, making it an effective barrier to water flow.Correct Answer: Clay.
69
Why is it important to study geological structures in tunnel design?
Discuss
Answer & Solution
Answer: Option C
Solution:
Geological structures like joints, faults, and folds affect rock stability.Understanding them ensures safe and economical tunnel design.Correct Answer: To ensure structural stability.
70
Which type of fault has movement primarily in the vertical direction?
Discuss
Answer & Solution
Answer: Option B
Solution:
A reverse fault involves vertical displacement where the hanging wall moves up relative to the footwall due to compressive forces.Correct Answer: Reverse fault.