A process of removing sap
Creosoting
Painting with sodium silicate
Coating with tar
A. A process of removing sap
0.2 liter
0.4 liter
0.6 liter
0.8 liter
To remove moisture
To remove carbonic acid
By roasting in heaps
All the above
1200 kg
1500 kg
1800 kg
2000 kg
Decreases
Increases
Remains same
May increase or decrease
Thinner
Vehicle
Base
Drier
Basalt
Granite
Quartz
Syenite
Absence of sun light
Dampness
Presence of sap
All the above
Sedimentary rock
Stratified rock
Aqueous rock
Metamorphic rock
Deodar
Chir
Shishum
Pine
The baked earth is called terra-cotta
The articles prepared from clay which is burnt at low temperature and cooled down slowly, are called earthen-ware
The articles prepared from refractory clays which as mixed with stone and crushed pottery, are called stone ware
All the above
Bessemer pig
Grey or foundry pig
White or forge pig
Mottled pig
1.5
1.7
2.2
2.7
Granite
Dolerite
Basalt
All the above
The free quartz suddenly expands at a temperature lower than 600°C
The lime stone resists fire upto about 800°C and at higher temperature it splits into CaO and CO2
The sand stone with silicates resist a fire in a better way
All the above
Steel
Stainless steel
High test plastic
Chromium plate
Closer
Queen closer
King closer
Squint brick
Quartz sand
Pure gypsum
Magnesite
Granite
Less amount of gypsum in very fine powdered form
More amount of gypsum in very fine powdered form
Aluminium sulphate in very fine powdered form
Pozzolana in very fine powdered form
Roasting is not necessary if iron ore is an oxide
Impurities float on the molten iron as slag
The slag contains lime about 45%
All the above
A liquid containing bitumen in suspension
A paint
Used as anti-corrosive paint
All the above
An apparatus to lift the stone
A depression on a face of brick
Vertical joint in a brick work
Soaking brick in water
Hydrogen
Nitrogen
Oxygen
All of these
Possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness
Are generally unaffected by most household detergents
Possess the light transmission rate of 93%
All the above
Durability
Colour
Smoothness
Glassy face
Pig iron
Cast iron
Wrought iron
Steel
Segregation
Bleeding
Honey combing
None of these
Strength
Rigidity
Elasticity
All of these
Di-calcium silicate
Tri-calcium silicate
Tri-calcium aluminate
Tetra calcium alumino ferrite
Plastics have generally low melting point
The coefficient of thermal expansion of plastics is about three times than that of steel
The acoustical boards prepared by impregnating fibre-glass with phenolic resins has absorption coefficient of about 0.67
All the above
Cast steel
Bessemer steel
Mild steel
Whitworth compressed steel