Gneiss is obtained from
Igneous rocks
Metamorphic rocks
Sedimentary rocks
Sedimentary metamorphic rocks
Correct Answer :
D. Sedimentary metamorphic rocks
Related Questions
The amount of water used for one kg of distemper is
0.2 liter
0.4 liter
0.6 liter
0.8 liter
Seasoning is
A process of removing sap
Creosoting
Painting with sodium silicate
Coating with tar
To retard the initial setting time of cement, the compound responsible, is
Tri-calcium silicate
Gypsum
Di-calcium silicate
Tri-calcium aluminate
The sequence of refractory materials according to increasing melting points is:
Dolomite, Magnesia, Bauxite, Chromites
Bauxite, Chromites, Dolomite, Magnesia
Magnesia, Bauxite, Dolomite, Chromites
None of these
Which of the following should be used for hearting of thicker walls?
Headers
Stretchers
Brick bats
Queen closer
Pick up the correct statement from the following:
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
To give a brilliant finish, the type of varnish used, is
Water varnish
Spirit varnish
Turpentine varnish
Oil varnish
The slag which floats on the surface of the molten iron generally contains
Lime (CaO) 45%
Silica (SiO2) 35%
Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8%
All the above
Bitumen in
Solid state, is called asphalt
Semi fluid state, is called mineral tar
Fluid state, is called petroleum
All the above
Turpentine oil is used in paints as
Thinner
Vehicle
Base
Drier
Mastic asphalt is
Water proof
Fire proof
Elastic
All the above
The nominal size of the modular brick is
190 mm × 90 mm × 80 mm
190 mm × 190 mm × 90 mm
200 mm × 100 mm × 100 mm
200 mm × 200 mm × 100 mm
Pick up the correct statement from the following:
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
Bullet proof glass is made of thick glass sheet sandwiched by a layer of
Steel
Stainless steel
High test plastic
Chromium plate
The commonly used thinner in oil paints, is
Naphtha
Turpentine
Both (a) and (b)
None the these
Quick lime (or caustic lime)
Is obtained by the calcination of pure lime stone
Has great affinity to moisture
Is amorphous
All the above
Gneiss is obtained from
Igneous rocks
Metamorphic rocks
Sedimentary rocks
Sedimentary metamorphic rocks
Vanadium steel is generally used for
Railway switches and crossing
Bearing balls
Magnets
Axles and springs
Cast iron
Is obtained by purifying pig iron
Is manufactured in required shapes
May contain 2 to 5 per cent of carbon with other impurities
All the above
Slacking of lime is affected by
Keeping it exposed to air
Immersing the lime in water
Crushing the lime lumps
None of these
Which one of the following is used for preparing porcelain?
Clay
Feldspar
Quartz
All of these
The foliated structure is very common in
Sedimentary rocks
Igneous rocks
Metamorphic rocks
None of these
Distemper is
A paint consisting of powdered chalk, pigments and water
A water proofing agent
A paint consisting of coloured cement and water
A drying agent
Pick up the correct statement from the following:
Hornblende mineral is brittle
Muscovite is also known as white mica and potash mica
Biotite is also known as black-mica
All the above
The plastics made from cellulose resin
Are as clear as glass
Are tough and strong
Possess excellent electrical properties
All the above
Kaolin is chemically classified as
Metamorphic rock
Argillaceous rock
Calcareous rock
Siliceous rock
A prime coat is given to steel work with
An oxide of iron paint
A mixture of white lead and lead paint
A special paint
Cement paint
German silver is an alloy of
Zinc, lead and nickel
Silver, gold and lead
Copper, nickel and zinc
Copper, brass and zinc
Which of the following cements is suitable for use in massive concrete structures such as large dams?
Ordinary Portland cement
Low heat cement
Rapid hardening cement
Sulphate resisting cement
Advantage of a clamp compared to a kiln for burning bricks is that
It takes less time for burning
It gives more output of first class bricks
It has less initial cost
It is suitable when bricks are required in large numbers