Rocks formed due to alteration of original structure due to heat and excessive pressure are called

Permanent magnets are made of high carbon steel and

Early attainment of strength in rapid hardening cement is mainly due to

Stones used for ornamental work must be

Which of the following bricks are used for lining of furnaces?

The filler used in plastic bitumen, is

In brick masonry the bond produced by laying alternate headers and stretchers in each course is known as

Steel contains carbon approximately

The clay to be used for manufacturing bricks for a large project, is dugout and allowed to weather throughout