In the designation of concrete mix, what is the significance of letter "M"?

Which is the index property determined by disturbed samples, that is ob-tained during sub-surface exploration?

Electronic Total station instrument generates the survey data in______________ format

According to assumption made by Rankine for the derivation of earth pressure, the soil mass is

A set of closed contour loops on a plan or map with contour elevations increasing towards their common centre indicates.

'School ahead' is________ road sign