The defect caused due to over-maturity and unventilated storage of the wood during its transit, is called

The fineness of cement is tested by

A good refractory brick should withstand high temperature. It should also have low coefficient of expansion and contract…

The compressive strength of perforated bricks should not be less than

Which of the following statement is correct?

The wood generally used for railway sleepers is

The natural drying of bricks is also called hack drying.

Limestone is physically classified as

An assembled product made up of veneers and adhesives is called