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ESE CE: Soil Mechanics & Foundation Engineering Champion Quiz 2

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Question 1

Which one of the following different types of submerged soils is susceptible to liquefaction under earthquake shocks?

Question 2

Assertion (A):Shear strength parameters of sand can be estimated by conducting unconfined compression test.
Reason (R): The effective angle of shearing resistance of sand is nearly the same for dry sand saturated sands, in drained condition.

Question 3

Consider the following statements:
Liquefaction is a phenomenon
1). Observed in fine sands
2). Associated with the development of positive pore pressure
Which of these statements is/are correct?

Question 4

Consider the following statements:
1). A sand with its void ratio higher than its critical void ratio increases in volume when sheared.
2). A sand with its void ratio lower than its critical void ratio increases in volume when sheared.
3). For a sand at critical void ratio, the volume change during shear is minimum.
Which of these statements are correct?

Question 5

A soil sample has a void ratio of 0.5; its porosity will be

Question 6

Consider the following statements:
1). Each year, black cotton soil appreciably shrinks during dry season and swells during rainy season. This alternate cycle of shrinking and swelling cause severe stresses in structures supported directly by such soil.
2). Black cotton soil contains predominantly a clay mineral called Kaolinite, which is responsible for causing appreciable shrinking and swelling
3). Shrinking and swelling of black cotton soils are observed only upto a certain depth below the ground level. Below that level, there is neither shrinking nor swelling
Which of these statements is/are correct?

Question 7

A clay sample has a void ratio 0.54 in dry state. The specific gravity of soil solids is 2.7. What is the shrinkage limit of the soil?

Question 8

Match List-I (Deposit) with List-II (Soil structure) and select the correct answer using the codes given below the lists:

Question 9

The virgin compression curve for a soil is shown in figure below. What is the compression index of the soil?

Question 10

In a consolidation test void ratio decreased from 0.80 to 0.70 when the effective stress was changed form 40 kN/m2 to 80 kN/m2. What is the compression index?
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Nov 26ESE & GATE CE