Test: Stress Distribution in Soil


9 Questions MCQ Test GATE Civil Engineering (CE) 2023 Mock Test Series | Test: Stress Distribution in Soil


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Attempt Test: Stress Distribution in Soil | 9 questions in 30 minutes | Mock test for Civil Engineering (CE) preparation | Free important questions MCQ to study GATE Civil Engineering (CE) 2023 Mock Test Series for Civil Engineering (CE) Exam | Download free PDF with solutions
QUESTION: 1

A line load of infinite length has an intensity q per unit length. What is the vertical stress σat a depth z below the earth at the centre of the load?

Solution:

QUESTION: 2

σz is the vertical stress at a depth equal to z in the soil mass due to a surface point load Q. The vertical stress at depth equal to 2z will be

Solution:

Under the point load, the vertical stress is given by, 

(From Boussinesq’s equation at r/z = 0)
∴ 

QUESTION: 3

In a Newmark’s influence chart for stress distribution, there are 10 concentric circles and 50 radial lines. The influence factor of the chart is

Solution:

QUESTION: 4

Match List-I (Contact pressure distribution diagrams) with List-II (Description of footings) and select the correct answer using the codes given below the lists:
List-I




List-II
1. Rigid footing on cohesive soil
2. Flexible footing on cohesive soil
3. Rigid footing on cohesionless soil at ground level
4. Flexible footing on cohesionless soil at ground level

Solution:
QUESTION: 5

The intensity of vertical pressure, directly below a concentrated load of 3/2π tonnes at a depth of 3/2π metres is given by

Solution:

According to Boussinesq’s theory,

QUESTION: 6

Newmark’s influence chart is used for

Solution:
QUESTION: 7

Influence factor ‘I’ depends on

Solution:

QUESTION: 8

Boussinesq’s influence factor for vertical pressure at depth Z and at the centre of a circular area of diameter A carrying uniformly distributed load is

Solution:


∴ 
∴ 

QUESTION: 9

Match List-I with List-II and select the correct answer using the codes given below the lists:
List-I
A. Stress distribution due to point load in homogeneous isotropic medium
B. Stress distribution due to point load in an anisotropic soil medium
C. Influence chart for stress distribution in a rectangular area
D. Influence chart for stress distribution in irregularly shaped areas.
List-II
1. Stein Brenner
2. Newmark
3. Boussinesq
4. Westergaard

Solution:
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