26. Group I contains representative load-settlement curves for different modes of bearing capacity failures of sandy soil. Group II enlists the various failure characteristics. Match the load-settlement curves with the corresponding failure characteristics.
    
    Group I
    P. Curve J
    Q. Curve K
    R. Curve L
    Group II
    1. No apparent heaving of soil around the footing
    2. Rankine’s passive zone develops imperfectly
    3. Well defined slip surface extends to ground surface

1. 1. P - 1, Q - 3, R - 2

   
   
   

   2. P - 3, Q - 2, R - 1

   
   
   

   3. P - 3, Q - 1, R - 2

   
   
   

   4. P- 1, Q - 2, R - 3

   
   
   

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1. View Hint View Answer Discuss in Forum

   P - 1, Q - 3, R - 2

   Correct Option: A

   P - 1, Q - 3, R - 2

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27. The contact pressure for a rigid footing resting on clay at the centre and the edges are respectively

1. 1. maximum and zero

   
   
   

   2. maximum and minimum

   
   
   

   3. zero and maximum

   
   
   

   4. minimum and maximum

   
   
   

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1. View Hint View Answer Discuss in Forum

   

   Correct Option: D

   

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28. Group I enlists in -situ field tests carried out for soil exploration, while Group II provides a list of parameters for sub-soil strength characterization. Match the type of tests with the characterization parameters.
    Group I
    P. Pressuremeter Test (PMT)
    Q. Static Cone Penetration Test (SCPT)
    R. Standard Penetration Test (SPT)
    S. Vane Shear Test (VST)
    Group II
    1. Menard’s modulus (E_m)
    2. Number of blows (N)
    3. Skin resistance (f_c)
    4. Undrained cohesion (C_u)

1. 1. P - 1; Q - 3; R - 2; S -4

   
   
   

   2. P - 1; Q - 2; R - 3; S - 4

   
   
   

   3. P - 2; Q - 3; R - 4; S - 1

   
   
   

   4. P - 4; Q -1; R - 2; S -3

   
   
   

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1. View Hint View Answer Discuss in Forum

   P - 1; Q - 3; R - 2; S -4

   Correct Option: A

   P - 1; Q - 3; R - 2; S -4

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29. Which of the following statements is TRUE for degree of disturbance of collected soil sample?

1. 1. Thinner the sampler wall, lower the degree of disturbance of collected soil sample

   
   
   

   2. Thicker the sampler wall, lower the degree of disturbance of collected soil sample

   
   
   

   3. Thickness of the sampler wall and the degree of disturbance of collected soil sample are unrelated

   
   
   

   4. The degree of disturbance of collected soil sample is proportional to the inner diameter of the sampling tube.

   
   
   

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1. View Hint View Answer Discuss in Forum

   When the thickness of sampler wall is less, the degree of disturbance of collected sample is lower.

   Correct Option: D

   When the thickness of sampler wall is less, the degree of disturbance of collected sample is lower.

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30. Surcharge loading required to be placed on the horizontal back fill of a smooth retaining vertical wall so as to completely eliminate crack is

1. 1. 2c

   
   
   

   2. 2ck_a

   
   
   

   3. 2c√ k_a

   
   
   

   4. 2c/√ k_a

   
   
   

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1. View Hint View Answer Discuss in Forum

   Surcharge load
   

   =	2c
   	√Ka

   Correct Option: D

   Surcharge load
   

   =	2c
   	√Ka

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