Civil Engineering - UPSC Civil Service Exam Questions - Discussion

2. 

If in a concrete mix the fineness modulus of coarse aggregate is 7.6, the fineness modulus of fine aggregate is 2.8 and the economical value of the fineness modulus of combined aggregate is 6.4, then the proportion of fine aggregate is

[A]. 25%
[B]. %
[C]. 50%
[D]. %

Answer: Option A

Explanation:

No answer description available for this question.

Harish said: (Feb 23, 2019)  
Option A). 25 % is the Correct answer.

Vetan said: (Oct 16, 2019)  
Proportion of agg is = p2-p/p2-p1.

= 7.6-6.4/7.6-2.8.

= 0.25 i.e. 25%.

Gopinath Chapagain said: (Apr 21, 2020)  
The Correct answer is 25%.

A Ali said: (Jan 16, 2021)  
@All

33.33% is the correct answer.
i.e (7.6-6.4)/(6.4-2.8) = 33.33%.

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