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Test: Rankine’s Theory - Civil Engineering (CE) MCQ


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10 Questions MCQ Test Soil Mechanics - Test: Rankine’s Theory

Test: Rankine’s Theory for Civil Engineering (CE) 2024 is part of Soil Mechanics preparation. The Test: Rankine’s Theory questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Rankine’s Theory MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Rankine’s Theory below.
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Test: Rankine’s Theory - Question 1

Originally, Rankine’s theory of lateral earth pressure can be applied to only _______

Detailed Solution for Test: Rankine’s Theory - Question 1

As originally proposed, Rankine’ s theory of lateral pressure is applied to uniform cohesion less soils only. Later, it was extended to include cohesive soil.

Test: Rankine’s Theory - Question 2

Based on the assumptions of Rankine’s theory, the soil mass is __________

Detailed Solution for Test: Rankine’s Theory - Question 2

According to the assumption of Rankine’s theory, the soil mass is semi-infinite, homogeneous, dry and cohesion less.

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Test: Rankine’s Theory - Question 3

The factor that is responsible for inclination of resultant pressure to the retaining wall is __________

Detailed Solution for Test: Rankine’s Theory - Question 3

The retaining walls are constructed of masonry or concrete, due to this the frictional force develops. The existence of the friction makes the resultant pressure inclined to the wall at an angle that approaches the frictional angle between the soil and the wall.

Test: Rankine’s Theory - Question 4

The earth pressure at rest exerted on a retaining structure can be calculated using __________

Detailed Solution for Test: Rankine’s Theory - Question 4

The earth pressure at rest, exerted on the back of the rigid, unyielding retaining structure, can be calculated using theory of elasticity.

Test: Rankine’s Theory - Question 5

The expression for K0 as given by Jacky is ___________

Detailed Solution for Test: Rankine’s Theory - Question 5

K0 can be calculated by using the following equation as computed by Jacky in 1944:
K0 = 1 – sin φ.

Test: Rankine’s Theory - Question 6

Rankine’s theory of lateral pressure was extended to other soil by __________

Detailed Solution for Test: Rankine’s Theory - Question 6

The theory of lateral pressure was extended to cohesive, stratified, partially immersed and submerged soil was by Resal in 1910 and by Bell in 1915.

Test: Rankine’s Theory - Question 7

Which of the following cases for cohesion less backfill in Rankine’s theory is considered?

Detailed Solution for Test: Rankine’s Theory - Question 7

In Rankine’s theory the following cases of cohesionless backfill are considered
i) Dry or moist backfill with no surcharge
ii) Submerged backfill
iii) Backfill with a sloping surface and inclined back and surcharge.

Test: Rankine’s Theory - Question 8

If the sand filled behind the retaining wall with saturated water with water, then the possible lateral pressure is __________

Detailed Solution for Test: Rankine’s Theory - Question 8

The lateral pressure is made up of two components for wetted soil in back of the retaining wall:
i) Lateral pressure due to submerged weight ‘γ’ of the soil, and
ii) Lateral pressure due to water.

Test: Rankine’s Theory - Question 9

The value of K0(coefficient of earth pressure at rest) for loose sand is __________

Detailed Solution for Test: Rankine’s Theory - Question 9

The value of K0 for different soils is:
i) Loose sand – 0.4
ii) Dense sand – 0.6
iii) Soft clay – 0.6
iv) Hard clay – 0.5.

Test: Rankine’s Theory - Question 10

What will be the coefficient of earth pressure at rest for a rigid retaining wall, If the backfill consists of cohesion less soil having φ = 26°?

Detailed Solution for Test: Rankine’s Theory - Question 10

Coefficient of earth pressure, K0 can be calculated using Jacky’s formula:
Given: φ = 26°
Formula: K0=1 – sin φ
K0 = 1 – sin 26°
K0 = 1 – 0.4383
K0 = 0.561628.

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