Civil Engineering - UPSC Civil Service Exam Questions - Discussion

27. 

The approximate ratio of strength of 15 cm x 30 cm concrete cylinder to that of 15 cm cube of the same concrete is

[A]. 1.25
[B]. 1.00
[C]. 0.85
[D]. 0.50

Answer: Option C

Explanation:

No answer description available for this question.

Sachin said: (Jul 25, 2018)  
Please solve it clearly.

Abhishek said: (Sep 22, 2018)  
0.8 cube strength = cylinder strength (approximate).

Ramvir said: (Mar 24, 2019)  
As per IS code, Cylinder/Cube = range is between 0.77 - 0.96.
It's the correct answer.

Lokesh Pandit said: (Sep 5, 2019)  
The cube strength = 1.25 time of cylindrical strength then cylindrical strength is .85.

Phani said: (Apr 3, 2020)  
Ratio of cylinder strength to cube strength varies from 0.77 -0.96. Thus 0.85 can be taken as approximation ratio.

Pavan Kalyan said: (Sep 9, 2020)  
(25*2* π * 0.126^2. * 0.3)/(25 * 15^3) = 0.75471.

Vabendra said: (Sep 26, 2020)  
@Pavan Kalyan.

Please explain your answer in detail.

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