Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Civil Engineering (CE) MCQ

# Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Civil Engineering (CE) MCQ

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## 10 Questions MCQ Test - Test: Principle of Effective Stress, Capillarity & Permeability - 2

Test: Principle of Effective Stress, Capillarity & Permeability - 2 for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Test: Principle of Effective Stress, Capillarity & Permeability - 2 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Principle of Effective Stress, Capillarity & Permeability - 2 MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Principle of Effective Stress, Capillarity & Permeability - 2 below.
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Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 1

### Determination of coefficient of permeability by means of afield pumping test can be done for

Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 2

### In a soil deposit of three layers of equal thickness, the permeabilities of first, second and third layers are in the ratio of 1 : 2 : 3. The ratio of average permeability in horizontal direction (kh) to that in the vertical direction (kv) will be

Detailed Solution for Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 2

Thickness of each layer is same i.e.

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Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 3

### Rise of water table above the ground surface causes:

Detailed Solution for Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 3

Water table above the ground surface acts as surcharge hence total stress also increases.

Also,  and as u increases σ increases

Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 4

The water level in a lake is 5 m above the bed. The saturated unit weight of the lake bed soil is 20 kN/m3. The unit weight of water is 10 kN/m3. The effective vertical stress at 5 m depth below . the lake bed is

Detailed Solution for Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 4

Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 5

Due to rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively. If other things remain constant, the coefficient of permeability

Detailed Solution for Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 5

Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 6

Consider the following statements:
Capillary water in soils
1. Causes negative pore water pressure.
2. Reduces effective pressure
3. Increases bearing capacity
4. Reduces bearing capacity

Which of these statements are correct?

Detailed Solution for Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 6

Capillary water causes negative pore pressure, increases effective pressure and bearing capacity.

Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 7

Effective stress on soil:

Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 8

In a falling-head permeability test, the time taken for the head to fall from 27 cm to 3 cm is 10 minutes, if the test is repeated with the same initial head, i.e., 27 cm, what time would it take for the head to fall to 9 cm?

Detailed Solution for Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 8

Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 9

The ratio of Darcy’s coefficient of permeability to porosity is known as:

Detailed Solution for Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 9

Kp = K/n
Kp = Coefficient of percolation

Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 10

The soils most susceptible to liquefaction are

Detailed Solution for Test: Principle of Effective Stress, Capillarity & Permeability - 2 - Question 10

In loose saturated sands on disturbance soil molecules came closer and volume decreases and hence positive pore pressure is set up, as a result effective stress reduces and sudden loss in shear strength is observed which results into failure. Such phenomenon is called liquefaction of sands.

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