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Rock Mechanics and Rock Engineering MCQs Questions & Answers | Geological Engineering

Learn and practice multiple-choice questions (MCQs) with answers related to Rock Mechanics and Rock Engineering. These resources are available for Geological engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Rock Mechanics and Rock Engineering chapter is particularly important for students studying Geological engineering. Page-5 section-2

Each section contains 100 MCQs on Rock Mechanics and Rock Engineering .
41
The term "spalling" in rock engineering refers to:
Discuss
Answer & Solution
Answer: Option A
Solution:
Spalling is the breaking off of rock flakes or layers from the surface, often due to stress release.
42
Which test is used to measure the tensile strength of rock?
Discuss
Answer & Solution
Answer: Option B
Solution:
The Brazilian test determines tensile strength by applying compressive load diametrically on rock discs.
43
Which phenomenon results in rock mass failure due to water pressure buildup?
Discuss
Answer & Solution
Answer: Option B
Solution:
Hydrofracturing occurs when water pressure exceeds rock strength, causing cracks and failure.
44
The term "block size" in rock masses is controlled by:
Discuss
Answer & Solution
Answer: Option B
Solution:
Block size is governed by joint spacing, which defines the size of individual rock blocks.
45
Which is a common method for assessing in-situ stress in rock?
Discuss
Answer & Solution
Answer: Option B
Solution:
Overcoring is a field method where a rock core is extracted and stress relieved to measure in-situ stress.
46
Which is NOT a typical rock mass classification system?
Discuss
Answer & Solution
Answer: Option C
Solution:
Mohr-Coulomb is a failure criterion, not a rock mass classification system.
47
The creep behavior of rock is more significant in:
Discuss
Answer & Solution
Answer: Option D
Solution:
Creep is prominent in weak or fractured rocks due to slow deformation under stress over time.
48
The primary purpose of shotcrete in rock engineering is:
Discuss
Answer & Solution
Answer: Option B
Solution:
Shotcrete is sprayed concrete used to stabilize rock surfaces and prevent collapse.
49
The term "bedding plane" refers to:
Discuss
Answer & Solution
Answer: Option B
Solution:
Bedding planes are sedimentary layers representing deposition surfaces and act as planes of weakness.
50
Which parameter describes the ability of rock to absorb energy before failure?
Discuss
Answer & Solution
Answer: Option A
Solution:
Toughness is the capacity of rock to absorb energy and deform plastically before fracturing.