UPSC Civil Service Exam Questions

Q1: Which of the following pairs in respect of ordinary Portland cement (OPC) are correctly matched
1. Initial setting time....30 minutes
2. Final setting time....10 hours
3. Normal consistency....10%
Select the correct answer from the codes given below :

A 1, 2 and 3

B 2 and 3

C 1 and 2

D 1 and 3

ANS:C - 1 and 2

Normal consistency = 30%.



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