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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-9 section-1

Each section contains 100 MCQs on Engineering Geology for Construction .
81
What is a common sign of potential landslide at a construction site?
Discuss
Answer & Solution
Answer: Option C
Solution:
Surface cracks and tilted trees are field indicators of slow soil movement or instability in hilly or sloping terrains.
82
What type of geological formation is best avoided when designing large dams?
Discuss
Answer & Solution
Answer: Option C
Solution:
Karstic limestone contains cavities and sinkholes due to dissolution, posing severe leakage and settlement risks under hydraulic structures.
83
Which site feature ensures better bearing capacity?
Discuss
Answer & Solution
Answer: Option C
Solution:
Well-compacted gravel provides excellent bearing strength, minimal settlement, and good drainage � ideal for load-bearing foundations.
84
In rocky terrains, tunnel alignment is ideally chosen to:
Discuss
Answer & Solution
Answer: Option B
Solution:
Tunnel alignment aims to avoid geological discontinuities like faults and joints that may cause instability, seepage, or failure.
85
Which factor affects the decision to use shallow vs deep foundations?
Discuss
Answer & Solution
Answer: Option B
Solution:
Soil bearing capacity and depth of competent strata dictate whether shallow (e.g., spread footings) or deep (e.g., piles) foundations are used.
86
What is the risk of constructing on collapsible soils?
Discuss
Answer & Solution
Answer: Option C
Solution:
Collapsible soils lose strength and compact rapidly upon wetting, leading to sudden settlement of structures.
87
Which rock mass condition may indicate low stability in cut slopes?
Discuss
Answer & Solution
Answer: Option A
Solution:
Steeply dipping joints toward the slope face provide failure planes, reducing slope stability and increasing risk of landslides.
88
What is the most common geological concern during high-rise construction in urban areas?
Discuss
Answer & Solution
Answer: Option C
Solution:
Ground settlement due to excavation, dewatering, or soft soil layers can compromise nearby structures during urban construction.
89
A highly weathered rock will generally have:
Discuss
Answer & Solution
Answer: Option B
Solution:
Weathered rocks develop increased porosity and reduced cohesion and strength, making them poor load-bearing materials.
90
What site investigation technique is used for identifying subsurface cavities?
Discuss
Answer & Solution
Answer: Option B
Solution:
Electrical resistivity survey detects variations in underground resistivity, which helps identify voids or cavities like in karst terrain.