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Answer: b) 2k Explanation: Let 〖 K〗_1, 〖 K〗_2 & 〖 K〗_3 be the values of permeability of the three layers. From the above numerical, 〖 K〗_1= k 〖 K〗_2 = 2k 〖 K〗_3 = 3k 〖 Z〗_1 = 〖 Z〗_2 = 〖 Z〗_3=5m When the flow is parallel to the bedding plane, then the … Read more

Answer: d) Boussinesq Explanation: In 1885, Boussinesq studied & solved stress distribution problems in soils because of the concentrated loads acting at the ground surface. The law of flow of water through the soils was given by darcy. In 1862, G.B Airy introduced the stress function.

Answer: a) σ_z= (0.4775Q )/(z^2 ) Explanation: The formula of Boussinesq’s vertical stress is, σ_z= 3Q/(2π z^2 ) 〖{1/(1+〖(r/z)〗^2 )}〗^(5/2) Put, r is equal to zero. We will get, σ_z= (0.4775Q )/(z^2 )

Answer: b) Method of superposition Explanation: In 1943, the method which is suggested by Biot was totally based on the method of superposition & is was proposed by Terzaghi. Statement of Terzaghi’s Principle is that whenever the stress is supposed to be applied to any porous type of material, then it is opposed by the … Read more

Answer: c) 50% Explanation: Given Data: W1= Empty weight of the container = 40gm W2= Weight of (Empty container + Wet soil sample) =100gm W3= Weight of (Empty container + Dry soil sample) =80gm W= Water Content=? Solution: The formula of water content by oven drying method, W =  (W2-W3)/(W3-W1)   x 100 W =   (100-80)/(80-40) … Read more

It is in INR – Indian Rupee

Answer: b) 2k Explanation: Let,  K1, K2 and K3  be the values of permeability of the three layers respectively. From the above numerical, K1= k K2= 2k K3= 3k Z1= Z2 = Z3 =5m   When the flow is parallel to the bedding plane, then the coefficient of permeability is,           … Read more