Civil Engineering - GATE Exam Questions - Discussion

2. 

Plate bearing test with 20 cm diameter plate on soil subgrade yielded a pressure of 1.25 x 105 N/m2 at 0.5 cm deflection. What is the elastic modulus of subgrade ?

[A]. 56.18 x 105 N/m2
[B]. 22.10 x 105 N/m2
[C]. 44.25 x 105 N/m2
[D]. 50.19 x 105 N/m2
[E]. None.

Answer: Option E

Explanation:

No answer description available for this question.

Riju Saha said: (Sep 8, 2014)  
Deflection = (pressure x area of contact)/E.
0.005 = (1.25 x 10^5 x 0.1)/E.

E = none of the above.

Manikanth said: (Jan 24, 2015)  
E = (1.18Pa)/0.005.

Raghu said: (Jan 19, 2019)  
Please explain the answer in detail.

Lakshmi said: (Jan 13, 2020)  
Es = (1.18XPa)/(0.5/100)
Es= 2.95X10power6N/sqm.
So answer is option E.

Shakil Ahmed said: (Mar 14, 2020)  
1.25*10^5/.5*1000 = 25*10^5.

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