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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-5 section-1

Each section contains 100 MCQs on Engineering Geology for Construction .
41
The engineering significance of a rock's porosity lies in its:
Discuss
Answer & Solution
Answer: Option B
Solution:
Porosity affects a rock�s ability to absorb and transmit water, influencing seepage, stability, and durability in engineering works.
42
What type of excavation support is commonly used in weak rock during tunneling?
Discuss
Answer & Solution
Answer: Option B
Solution:
Rock bolts and shotcrete stabilize weak rock surfaces and prevent loose material from falling during tunnel construction.
43
Which test determines rock durability under wetting and drying cycles?
Discuss
Answer & Solution
Answer: Option A
Solution:
The slake durability test measures the resistance of weak rock (like shale) to breakdown during moisture cycles.
44
A foundation must not be placed above which geological feature?
Discuss
Answer & Solution
Answer: Option D
Solution:
Fault planes can be zones of weakness and movement, posing serious risk for structural failure.
45
What is the main purpose of a geological map in site selection?
Discuss
Answer & Solution
Answer: Option C
Solution:
Geological maps show rock types, structures, and stratigraphy that are vital for selecting safe and stable construction sites.
46
Which geological process can cause settlement of buildings over time?
Discuss
Answer & Solution
Answer: Option C
Solution:
Consolidation is the gradual compression of soil due to expulsion of water under load, causing settlement in structures.
47
A rock with high unconfined compressive strength is preferred for:
Discuss
Answer & Solution
Answer: Option C
Solution:
High unconfined compressive strength indicates a rock's ability to bear structural loads, essential for foundations.
48
Which rock type is most problematic for tunneling due to swelling behavior?
Discuss
Answer & Solution
Answer: Option B
Solution:
Shale may absorb water and swell or disintegrate, making it difficult and risky during tunnel construction.
49
What is the main engineering concern with clayey soils in construction?
Discuss
Answer & Solution
Answer: Option C
Solution:
Clayey soils tend to compress under loads and exhibit settlement issues, impacting foundation integrity.
50
The Dip of a bedding plane affects:
Discuss
Answer & Solution
Answer: Option C
Solution:
The dip is the angle of inclination of a rock layer. It influences how slopes fail, especially if dipping parallel to the slope surface.