ESE CE: Soil Mechanics & Foundation Engineering Champion Quiz 3 for ESE & GATE CE Exams

Question 1

Consider the following statements:
Lime stabilization of soil leads to
1). Decreases in shrinkage limit
2). Increase in plastic limit
3). Decrease in liquid limit
4). Flocculation of clay particles
Which of the above statements are correct?

Question 2

During a sampling operation, the depth of penetration of sampling tube is 600 mm and the length of the sample within the tube is 525 mm. what is the recovery ratio of the sample?

Question 3

In seismic exploration method, velocities V₁ and V₂ were 600 m/s and 4000 m/s the distance corresponding to the break point of velocities was 30 m. Based on this detail. What is the depth of overburden?

Question 4

Consider the following statements regarding Auger Boring is Correct:
1). Used for Undisturbed excavation
2). It reduces pore water pressure
Which of these statements is/are correct?

Question 5

Consider the following statements:
Dewatering increases the slope stability of a cohesionless soil mainly because
1). It causes change in pH
2). It reduces pore water pressure
Which of these statements is/are correct?

Question 6

Match List-I (Unit) with List-II (Purpose) and select the correct answer using the codes given below the lists:
List-I
A). Graded filter
B). Lime treatment
C). Impervious clay core
D). Curtain grouting
List-II
1). To reduce seepage of water through boby of earth dam
2). To reduce water seepage through foundation below dam
3). To stabilize black cotton soils
4). To drain water without losing fines form the soil

Question 7

A soil mass under seepage has a downward flow of water. Which of the following statements are correct with regard to stresses at any point in the soil mass?
1). Effective stress is decreased by an amount equal to the seepage force
2). Effective stress is increased by an amount equal to the seepage force.
3). Total Stress will change
4). Total stress will be unaltered
Select the correct answer using the codes given below:

Question 8

If the time required for 60% consolidation of a remolded soil sample of clay with single drainage is ‘t’ then what is the time required to consolidate the same sample of clay with the same degree of consolidation but with double drainage?

Question 9

Statement (I): Clay exhibit more hygroscopicity than sands.
Statement (II): Clays are colloidal and consequently their specific surface is very high.

Question 10

Assertion (A):The water content of inorganic soils is determined by heating the soil in an oven at a temperature of

to

Reason (R): The free water, absorbed water and structural water are all completely removed form the soil by heating above 110⁰ C