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Engineering Geology for Construction MCQs Questions & Answers | Geological Engineering

Learn and practice multiple-choice questions (MCQs) with answers related to Engineering Geology for Construction. These resources are available for Geological engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Engineering Geology for Construction chapter is particularly important for students studying Geological engineering. Page-10 section-1

Each section contains 100 MCQs on Engineering Geology for Construction .
91
What geological factor is critical in the design of tunnels in mountain regions?
Discuss
Answer & Solution
Answer: Option B
Solution:
Orientation of bedding planes is crucial because it influences potential failure planes and water seepage.Unfavorable alignment can lead to collapse or instability.
92
The term �rippability� of rock refers to:
Discuss
Answer & Solution
Answer: Option C
Solution:
Rippability indicates how easily rock can be excavated without blasting.It depends on rock strength, weathering, and structure.
93
Which soil type is most problematic for lightly loaded structures?
Discuss
Answer & Solution
Answer: Option B
Solution:
Organic clay has low shear strength and high compressibility, making it unstable for supporting loads without treatment.
94
Which test helps determine the swelling potential of soil?
Discuss
Answer & Solution
Answer: Option C
Solution:
The Free swell index test evaluates the expansion potential of expansive soils like black cotton soil, which is essential for construction safety.
95
The construction of basements in waterlogged areas requires:
Discuss
Answer & Solution
Answer: Option C
Solution:
Dewatering systems such as sump pumps or well points are needed to lower groundwater and allow dry working conditions during basement construction.
96
The angle of repose of soil is defined as:
Discuss
Answer & Solution
Answer: Option C
Solution:
Angle of repose is the steepest angle at which loose soil remains stable without sliding.It depends on soil type and moisture.
97
In dam site selection, the presence of faults is:
Discuss
Answer & Solution
Answer: Option C
Solution:
Faults are zones of weakness and may become seepage paths or induce instability, making them unsuitable for dam construction.
98
Soil compaction improves:
Discuss
Answer & Solution
Answer: Option C
Solution:
Compaction increases the density of soil, enhancing shear strength and reducing settlement, which is vital for safe construction.
99
The main goal of grouting in rocks is to:
Discuss
Answer & Solution
Answer: Option A
Solution:
Grouting involves injecting materials to fill cracks and voids in rocks, thereby reducing permeability and improving strength.
100
The purpose of using retaining walls in construction is to:
Discuss
Answer & Solution
Answer: Option C
Solution:
Retaining walls hold back soil in sloped terrain, preventing landslides and soil collapse in cut-and-fill construction.