Rock Mechanics Flashcards
True or False: Rock mechanics is only concerned with the physical properties of rocks.
False
What are the primary factors that influence rock mechanics?
Stress, strain, and geological conditions.
Fill in the blank: The _____ of a rock is its ability to deform under stress.
plasticity
Multiple Choice: Which of the following is a type of rock? A) Sandstone B) Soil C) Clay
A) Sandstone
True or False: Rock weathering has no impact on rock mechanics.
False
Fill in the blank: The _____ of a rock refers to its compressive strength.
unconfined compressive strength
What is the purpose of rock testing in civil engineering?
To determine the physical and mechanical properties of rock materials.
Multiple Choice: Which test is commonly used to measure the shear strength of rocks? A) Triaxial test B) Unconfined compression test C) Both A and B
C) Both A and B
What role do joints play in rock mechanics?
Joints can significantly affect the strength and stability of rock masses.
True or False: The presence of water can enhance the strength of rock.
False
What is the term for the maximum load a rock can support before failure?
Ultimate strength
Fill in the blank: The _____ of a rock is the ratio of its stress to strain.
modulus of elasticity
What is the significance of the geological structure in rock mechanics?
It influences the behavior and stability of rock masses.
Multiple Choice: Which of the following is NOT a type of rock? A) Igneous B) Metamorphic C) Plastic
C) Plastic
What is the term used for the resistance of a rock to deformation?
Stiffness
True or False: Rock mechanics principles are only applicable to large-scale engineering projects.
False
What does the term ‘rock mass’ refer to?
A volume of rock that is considered for engineering purposes.
Fill in the blank: The _____ is a graphical representation of the stress-strain relationship.
stress-strain curve
What is the impact of temperature on rock mechanics?
Temperature changes can alter the mechanical properties of rocks.
Multiple Choice: Which of the following factors does NOT affect rock stability? A) Rock type B) Weather conditions C) Project duration
C) Project duration
What is the importance of understanding rock behavior for civil engineers?
To design safe and effective structures that interact with rock masses.
True or False: The angle of internal friction is a key parameter in rock mechanics.
True
What is the term for the process of rock fragment movement due to gravity?
Mass wasting
Fill in the blank: The _____ is a common method for assessing rock quality.
Rock Quality Designation (RQD)
What is the effect of pore pressure on rock mechanics?
It can reduce the effective stress and affect stability.
Multiple Choice: Which rock type is formed from the cooling of magma? A) Sedimentary B) Igneous C) Metamorphic
B) Igneous
What is the relationship between stress and strain in rock mechanics called?
Elasticity
True or False: All rocks have the same mechanical properties.
False
What does the term ‘geotechnical engineering’ encompass?
The application of soil and rock mechanics principles in engineering.
