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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-2 section-1

Each section contains 100 MCQs on Engineering Geology for Construction .
11
What is the key concern with limestone terrain for heavy construction?
Discuss
Answer & Solution
Answer: Option C
Solution:
Limestone often develops karst features like sinkholes and caves due to dissolution, posing significant foundation risks.
12
Which geophysical method is effective in determining subsurface rock layers?
Discuss
Answer & Solution
Answer: Option B
Solution:
Resistivity surveys identify subsurface features by measuring how much the ground resists electric current.Useful in mapping bedrock and faults.
13
In foundation design, why is weathering of rocks a concern?
Discuss
Answer & Solution
Answer: Option C
Solution:
Weathering breaks down rock minerals, reducing strength, cohesion, and load-bearing capacity.Deep weathering may create unsuitable foundation conditions.
14
What is the major risk when building tunnels in sedimentary rock with dip towards the face?
Discuss
Answer & Solution
Answer: Option C
Solution:
Dipping sedimentary layers towards the excavation face can result in sliding along bedding planes.This geometry increases failure risks.
15
Which method is commonly used for improving weak ground in construction sites?
Discuss
Answer & Solution
Answer: Option B
Solution:
Grouting involves injecting cementitious or chemical fluids to fill voids, reduce permeability, and increase strength in weak ground.
16
What is the primary geological hazard considered when selecting a tunnel route?
Discuss
Answer & Solution
Answer: Option C
Solution:
Fault zones are weak and fractured, posing hazards such as collapses and water ingress in tunnel alignments.Avoiding them is a key consideration in tunnel planning.
17
Which type of foundation is preferred on soft soil with low bearing capacity?
Discuss
Answer & Solution
Answer: Option D
Solution:
Pile foundations transfer loads to deeper, more stable strata.They are essential in soft soils where shallow foundations fail due to low strength.
18
A geological survey for a bridge site must include:
Discuss
Answer & Solution
Answer: Option C
Solution:
Bridge stability depends on bedrock strength and orientation.Geological surveys help identify suitable strata and potential failure planes.
19
The most common issue with shale as a foundation material is:
Discuss
Answer & Solution
Answer: Option B
Solution:
Shale can swell, shrink, and disintegrate on moisture variation, making it unstable under cyclic loading.
20
Why is geological cross-section important in construction?
Discuss
Answer & Solution
Answer: Option C
Solution:
A geological cross-section illustrates subsurface lithology, faults, and folds, aiding design decisions for foundations, slopes, and excavations.