A desk study involves collecting existing data (maps, reports, aerial photos) before any fieldwork begins.Correct Answer: Desk study and literature review.
43.
Which test is commonly used to determine soil plasticity?
The liquid limit test measures the water content at which soil changes from plastic to liquid behavior, indicating its plasticity.Correct Answer: Liquid limit test.
A dike is a tabular igneous intrusion that cuts across preexisting rock layers, often vertical or steeply inclined.Correct Answer: An inclined igneous intrusion.
Slope oversteepening increases gravitational stress on soil and rock masses, triggering landslides, especially after rainfall or seismic activity.Correct Answer: Slope oversteepening.
47.
Which of the following is considered an intrusive igneous rock?
The Standard Penetration Test (SPT) provides an estimate of shear strength and relative density of granular soils through resistance to penetration.Correct Answer: Shear strength.
Dip is the angle at which a rock layer or fault surface inclines from the horizontal.It is measured perpendicular to strike.Correct Answer: Angle between rock surface and horizontal plane.
A core sample is a cylindrical section of rock or soil extracted for analysis of subsurface conditions.It helps identify rock type, structure, and mineral content.Correct Answer: Evaluating subsurface geological formations.
