In the cement the compound quickest to react with water, is

For melting one tonne of cast iron

The variety of pig iron used for manufacture of wrought iron, is

If the iron ore contains clay as an impurity, the flux added during calcination, is

A 1st class brick immersed in water forhours, should not absorb water (by weight) more than

The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively:

Quick lime (or caustic lime)

Minimum required water cement ratio for a workable concrete, is

The rocks in which argil (or clay) predominates, are called

Shingle is

For sanitary pipes and chemical stonewares,

Pick up the correct statement from the following:

Expanded metal is

Water paint is a

Pick up the correct statement from the following:

The standard size of masonry bricks, is

A pug mill is used for

Plywood is made from

Pick up the correct statement from the following:

When a brick is immersed in water forhours and then dried, if

Cement is said to be of good quality if

Blister steel

Slacking of lime is affected by

Geologically, marble is known as

Pick up the correct statement from the following:

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

A badly mixed cement concrete results in

Pick up the plutonic rock from the following:

The steel used for rails under heavy traffic and on sharp curves, is

The cracks which extend from bark towards the sap wood in the cross section of a tree, are called

The rock generally used for roofing, is

Seasoning of timber is done

A good brick earth should contain :

Soundness test of cement determines

The rocks which are formed due to cooling of magma at a relatively shallow depth from the earth's surface are called

In arches, stratified stones are placed so that their planes are

Cast steel is manufactured by

The most important constituent of varnish, is

The steel used in R.C.C. work is

Name the type of cement from the following for canal linings :

The compound of Portland cement which contributes to the strength after two to three years is

Stainless steel resists corrosion due to

Pick up the correct statement regarding low heat cement from the following:

The pigment used in paints for corrosive resistance, is

If the ore impurities is

The lime which contains mainly calcium oxide and slacks with water, is

The weight of a good quality brick when immersed in water for a period ofhours should not exceed the weight of dry brick

Sea sand used in structures causes

The specific gravity of marble, is

The base material for distemper, is