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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-8 section-1

Each section contains 100 MCQs on Engineering Geology for Construction .
71
What is a common indicator of soil instability at a site?
Discuss
Answer & Solution
Answer: Option B
Solution:
Ground fissures and cracks are signs of soil movement or settlement, often precursors to landslides or foundation issues.
72
The excavation of a site in saturated clay soil requires special attention due to:
Discuss
Answer & Solution
Answer: Option B
Solution:
Saturated clays may undergo loss of strength and stability during excavation, causing sudden collapse or flow-type failures.
73
What is the role of geotextiles in construction geology?
Discuss
Answer & Solution
Answer: Option B
Solution:
Geotextiles are synthetic fabrics used to reinforce soil, improve drainage, and separate soil layers in roadbeds and embankments.
74
What test provides information about in-situ soil density?
Discuss
Answer & Solution
Answer: Option C
Solution:
The sand cone test is used to measure field density of compacted soils to assess compaction quality.
75
Which geological hazard is often encountered during tunneling through mountainous regions?
Discuss
Answer & Solution
Answer: Option C
Solution:
A rock burst is a sudden, violent failure of rock in high-stress conditions, common in deep or mountainous tunnel excavations.
76
Which type of foundation is most suitable for weak or compressible soils?
Discuss
Answer & Solution
Answer: Option C
Solution:
Pile foundations transfer loads to deeper, more stable strata and are commonly used in weak or compressible surface soils.They bypass weak layers to reach competent load-bearing strata.
77
The durability of construction rock is most affected by:
Discuss
Answer & Solution
Answer: Option C
Solution:
Mineral composition influences how resistant a rock is to weathering and decay.For instance, rocks with unstable minerals (e.g., feldspars) degrade faster.
78
Which rock type is least suitable as construction aggregate?
Discuss
Answer & Solution
Answer: Option C
Solution:
Shale is a soft, flaky sedimentary rock that breaks down easily and lacks the strength required for use as aggregate.
79
Which property of soil is crucial for embankment stability?
Discuss
Answer & Solution
Answer: Option B
Solution:
Cohesion is the inter-particle attraction that holds soil together, playing a key role in embankment and slope stability.
80
In highway construction, expansive soil is problematic due to:
Discuss
Answer & Solution
Answer: Option D
Solution:
Expansive soils swell when wet and shrink when dry, causing cyclic ground movement that damages roads and structures.