ISRO 2023 Quiz 25 Revision

Which of the following is not an argillaceous compound?

Percentage of lime in OPC is approximately?

Water needed to be added for complete hydration of cement is.

Which of the following is most significant factor that influences the total shrinkage of concrete

If in a clock, 12 is replaced by 1, 11 by 2, 10 by 3 and so on, then what will be the time in that clock corresponding to ‘twenty minutes past three in the usual clock’?