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GATE 2019 Soil Mechanics Quiz 11

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Question 1

In friction circle method of slope stability analysis, if r defines the radius of the slip circle, the radius of friction circle is

Question 2

An infinite soil slope with an inclination of 35 ° is subjected to seepage parallel to its surface. The soil has Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\Civil Engg\Civil Engineeing-04-Apr\Civil-Engineering-2004_files\image186.png and Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\Civil Engg\Civil Engineeing-04-Apr\Civil-Engineering-2004_files\image187.png. Using the concept of mobilized cohesion and friction, at a factor of safety of 1.5 with respect to shear strength, the mobilized friction angle is

Question 3

A granular soil possesses saturated density of 19 kN/m3. Its effective angle of internal friction is 28 °. If the desired factor of safety is 3, then the safe angle of an infinite slope for this soil, when seepage occurs parallel to the slope surface, is _______degree.
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Question 4

The soil profile above the rock surface for a 25 ° infinite slope is shown in the figure, where su is the undrained shear strength and gt is total unit weight. The slip will occur at a depth of
Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\Civil-Engineering-2013_files\image130.jpg

Question 5

A canal, having a depth of 6 m, is to be excavated through a soil with c = 15 kN/m2,
e = 0.9, = 20 ° and G = 2.67. The side slope is 1 in 1. The factor of safety, if the canal is rapidly emptied, is

Question 6

The infinite sand slope shown in the figure is on theverge of sliding failure. The ground water tablecoincides with the ground surface. Unit weight of water The value of the effective angle of internal friction (indegrees, up to one decimal place) of the sand is________
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Oct 16ESE & GATE CE