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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-3 section-1

Each section contains 100 MCQs on Engineering Geology for Construction .
21
Which rock mass classification system is widely used for tunnels?
Discuss
Answer & Solution
Answer: Option C
Solution:
The RMR system evaluates rock mass quality using parameters like UCS, joint spacing, condition, and water conditions.It guides tunnel support design.
22
A cut slope in weathered granite should be:
Discuss
Answer & Solution
Answer: Option C
Solution:
Benched and gentle slopes improve stability in weathered granite, which may lose cohesion and shear strength over time.
23
Which factor does NOT affect the choice of a construction site?
Discuss
Answer & Solution
Answer: Option C
Solution:
While important for climate-based design, historical temperature is not a major geological parameter in construction site evaluation.
24
For construction on hilly terrain, the most stable foundation material is:
Discuss
Answer & Solution
Answer: Option D
Solution:
Fresh bedrock provides excellent support and low compressibility.It is the most stable material for hill slope constructions.
25
In road construction, which geological feature often leads to slope failure?
Discuss
Answer & Solution
Answer: Option A
Solution:
Vertical joints create planes of weakness, which can be exploited by gravity or water infiltration, leading to landslides or rockfalls.
26
Which method improves drainage and stability in slopes?
Discuss
Answer & Solution
Answer: Option D
Solution:
Horizontal drains lower pore water pressure, increasing slope stability by preventing saturation-induced failures.
27
What property of rocks is most relevant for assessing load-bearing capacity?
Discuss
Answer & Solution
Answer: Option C
Solution:
Compressive strength indicates how much axial stress a rock can bear before failure.It's essential for foundation and support analysis.
28
Which geological factor is critical when building near a riverbank?
Discuss
Answer & Solution
Answer: Option C
Solution:
Floodplain sedimentation determines ground strength, risk of scouring, and foundation behavior near rivers.
29
During tunnel blasting, which rock type may create gas pockets and sudden collapse?
Discuss
Answer & Solution
Answer: Option A
Solution:
Basalt may contain gas vesicles (voids), which weaken rock mass and can suddenly collapse during blasting.
30
For underground metro construction in urban areas, why is geotechnical borehole logging essential?
Discuss
Answer & Solution
Answer: Option C
Solution:
Borehole logging reveals soil profile, water table, and rock properties critical for tunnel design, safety, and dewatering strategy.