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UPSC Civil Service Exam Questions - Engineering

Q1:

Consider the following statements :
1. Mastic asphalt is a mixture of hard grade bitumen or blown bitumen, minerals filter and fine aggregates.
2. % of binder content in the mastic asphalt is 17-20 percent by weight of the aggregates. Which of the statements given above is/are correct ?

A 1 only

B 2 only

C Both 1 and 2

D Neither 1 nor 2

ANS:C - Both 1 and 2

According to Indian road congress IRC 107-2013, the bitumen or binder content is in between 14-17.

So the answer should be A.