Calcination of iron ores is done

Invar contains

The kiln which may work throughout the year, is

The commonly used thinner in oil paints, is

The main ingredient of a good quality brick earth, is

Generally wooden moulds are made from

Lime stone is not a

Second class bricks

The sequence of refractory materials according to increasing melting points is :

Seasoning of timber is essential to remove

The melting point of silica is :

The portion of a brick cut to form angles other than right angles in plan, is known as

In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane of bedding is

In a rock calcium carbonate predominates. State whether it is :

Strength of cement concrete primarily depends upon

Based on flow quality, the sequence of pipes is

The minimum compressive strength of 1st class bricks should be

Bitumen is generally obtained from

Wrought iron contains carbon about

The size of modular bricks, is

A piece of timber whose thickness and width are respectively 5 cm andcm is called

Pick up the correct statement from the following:

Veneering means

Pick up the correct statement from the following:

Plywood is obtained by gluing wooden sheets at

The most durable varnish is

In order of increasing percentage of silica, the correct sequence is

Rapid hardening cement contains

Bitumen emulsion is

A volatile substance added to a paint to make its application easy and smooth, is known as

For one cubic metre of brick masonry, number of bricks required, is

Gniess is obtained from

Ultimate strength to cement is provided by

The commonly used colour pigment in paints, is

The initial setting time of lime-pozzolana, is

The main constituent of fly-ash, is

Bitumen in

Pig iron is manufactured from the ores by

Pick up the correct statement from the following:

Softer variety of steel may be obtained by

The rocks which are formed due to pouring of magma at the earth's surface are called

For filling cracks in masonry structures, the type of bitumen used, is

Sand stone is

Good quality stones must

Which one of the following is acid resistant asbestos:

The rocks formed by gradual deposition, are called

Elastomers can extend upto

Varnish is a transparent or semi-transparent solution of resinuous substances in

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

The plastics made from cellulose resin