Chromium
Nickel
Tungsten
None of these
Sulphur
Carbon
Phosphorus
Silicon
Plutonic rocks
Hypabyssal rocks
Volcanic rocks
Igneous rocks
20 %
15 %
10 %
None of these
Greater tensile strength in longer direction
Greater tensile strength in shorter direction
Same tensile strength in all directions
None of the above
75 kg/cm2
90 kg/cm2
100 kg/cm2
120 kg/cm2
Basalt and marble are the only metamorphic rocks
There is no sedimentary rock
Granite is the only igneous rock
Quartz and mica are minerals
Retains heat-longer
Has a higher strength to weight ratio
Is shock proof and fire retardant
All the above
To remove moisture
To remove carbonic acid
By roasting in heaps
All the above
Shale
Lime stone
Sand stone
Granite
Cellulose acetate plastics
Polyvinyl chloride plastics
Phenol formaldehyde plastic
Urea formaldehyde plastic
Petroleum
Spirit
Coal tar
Turpentine
Red lead
Zinc white
White lead
Titanium white
Salt glazing is used
Lead glazing is used
Opaque glazing is used
None of these
Thinner
Vehicle
Base
Drier
The monsoon
The winter
The summer
None of these
Closer
Queen closer
King closer
Prince closer
Acid resisting material
Non-corrosive material
Corrosive material
Heating-resisting material
Keeping it exposed to air
Immersing the lime in water
Crushing the lime lumps
None of these
Lime is available in Free State
Lime is available by dissolving calcium carbonate in water
Lime is available by calcining calcium carbonate at 900°C
Lime is nothing but calcium chloride
Metamorphic rock
Argillaceous rock
Calcareous rock
Siliceous rock
Durability
Colour
Smoothness
Glassy face
2.50
2.60
2.66
2.72
Decreases
Increases
Remains same
May increase or decrease
Defects caused by crushing fibres
Splits radiating from the centre
Speckled strains
Signs of branches cut off
Driving wooden headed chisels
Rough dressing of stones
Carving of stones
Breaking small projection of stones
1200 kg
1500 kg
1800 kg
2000 kg
Is brittle
Warps due to changes in humidity
Strength is lowered when saturated by water
All of the above
Silica bricks
Coke oven
Lining for glass furnaces
All of these
Bed joint
Wall joint
Cross joint
Bonded joint