20 %
15 %
10 %
None of these
Is made from hydraulic lime
Is made by adding lime to water
Can be used only upto three days
All of above
Is an organic substance
Consists of natural or synthetic binders
Finished products are rigid and stable at normal temperature
All the above
Is made by grinding its one side
Is made by melting powdered glass paints surface
Is used for getting light without transparency
All the above
Chalk
Lime
Lime putty
Cement wash
Di-calcium silicate
Tri-calcium silicate
Tri-calcium aluminate
Tetra calcium alumino ferrite
Corrugated sheet used for roofing
An incombustible fire proof material
An organic substance
All the above
Over-burnt bricks
Under-burnt bricks
Refractory bricks
First class bricks
CaCO3
Ca(OH)2
CO3CO2
None to these
Acid resisting material
Non-corrosive material
Corrosive material
Heating-resisting material
Metamorphic rock
Argillaceous rock
Calcareous rock
Siliceous rock
Defects caused by crushing fibres
Splits radiating from the centre
Speckled strains
Signs of branches cut off
Plutonic rocks
Hypabyssal rocks
Volcanic rocks
Igneous rocks
Bessemer pig
Grey or foundry pig
White or forge pig
Mottled pig
700 m3 air is required
20 kg limestone is required
One quintal coke is required
All the above
Is obtained by cementation process
Is full of fissures and cavities
Can be easily welded
All the above
Used as a water proofing layer over roof
A mixture of cement and asphalt
A natural asphalt
A refinery product
Proportioning of aggregates
Fineness modulus
Grading of aggregates
None of these
10 %
15 %
20 %
25 %
Switch block
Insulating tubes
Lamp sockets
All of these
Urea resin
Phenolic resin
Resorcinol resin
All of these
Cellulose resin
Alkyd resin
Methyl methacrylate
Cumarone-indene
400
425
450
500
Odourless
Non-toxic
Transparent
All of these
5 %
15 %
25 %
35 %
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
Sedimentary rock
Igneous rock
Metamorphic rock
Stratified rock
Rolling
Pudding
Shingling
Refining
Absence of sun light
Dampness
Presence of sap
All the above
Shale powder
Talc powder
Asbestos powder
Plastic powder