Geologically, marble is known as

The stone suitable for rubble masonry should be.

Ultimate strength to cement is provided by

The compound of Portland cement which reacts immediately with water and also sets first is

The normal curing period for lime mortar, is:

Pick up the correct statement from the following:

Whitworth compressed steel is obtained when molten steel is subjected to a pressure of

Crushing strength of a first class brick should not be less than

Brass is an alloy of