The proportions of lime and sand in the mortar normally used in brick construction are

Formula for quick lime, is

Pick up the correct statement from the following:

The weight of 1 m<sup>3</sup> of brick earth, is about

The plywood . . . . . . . .

Rapid hardening cement attains early strength due to

Sapwood consists of

The curved swellings from the growth of layers or wounds left after branches are cut off in an irregular manner are know…

The initial setting time for ordinary Portland cement as per IS specifications should not be less than