Which of the following sedimentary rocks changes into quartzite by metamorphic action?
Sand stone
Lime stone
Shale
Gypsum
Correct Answer :
A. Sand stone
Related Questions
Invar contains
12% of nickel
24% of nickel
30% to nickel
36% of nickel
Le-Chatelier's device is used for determining the
Setting time of cement
Soundness of cement
Tensile strength of cement
Compressive strength of cement
Spirit varnish generally consists of
Oil, wax and resin
Alcohol, wax and turpentine
Pigment and synthetic resin
Spirit and shellac
Blister steel
Is obtained by cementation process
Is full of fissures and cavities
Can be easily welded
All the above
Second class bricks
Are of dark brown colour
Produce a metallic sound when struck
Are well burnt
Are under burnt
Which of the following sedimentary rocks changes into quartzite by metamorphic action?
Sand stone
Lime stone
Shale
Gypsum
Pick up the correct statement from the following:
For thin structures subjected to wetting and drying, the water cement ratio should be 0.45
For mass concrete structures subjected to wetting and drying, the water ratio should be 0.55
For thin structures which remain continuously under water, the watercement ratio by weight should be 0.55
All the above
Sea sand used in structures causes
Dampness
Efflorescence
Disintegration
All of these
Asbestos
Is an excellent insulator for heat and electricity
Is fire-proof and acid proof
Has sp. gravity equal to 3.10
All the above
Dorry's testing machine is used for
Crushing test of stone
Hardness test of stone
Impact test of stone
Water absorption test
Percentage of silica in a good brick earth lies between
5 to 10 %
20 to 30 %
50 to 60 %
70 to 80 %
The commonly used raw material in the manufacture of cement, is
Slate
Sand stone
Lime stone
Basalt
The tendency of a stone is, to split along:
Texture
Fracture
Cleavage
Structure
Dry rot
Cracks the timber
Reduces the strength of timber
Reduces the timber to powder
Spoils the appearance of timber
Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as
Quick setting cement
Rapid hardening cement
White cement
Low heat Portland cement
Cast steel is manufactured by
Cementation process
Crucible process
Bessemer process
Open hearth process
Fibre glass
Retains heat-longer
Has a higher strength to weight ratio
Is shock proof and fire retardant
All the above
Fibre boards can be
Distempered
Painted
Painted and distempered
Used for furniture
Wrought iron contains carbon upto
0.25 %
1.0 %
1.5 %
2 %
Mastic asphalt is generally used for
Damp proof course
Water proof layer
Partition walls
Both (A) and (B)
Gneiss is obtained from
Igneous rocks
Metamorphic rocks
Sedimentary rocks
Sedimentary metamorphic rocks
The hardest rock is
Marble
Diamond
Talc
Quartz
Refractory bricks are used for
Retaining walls
Columns
Piers
Combustion chambers
During smelting process, the combination of fuel in the furnace
Forms carbon dioxide
Carbon dioxide with carbon forms carbon mono-oxide
Carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2
All the above
Pick up the correct statement from the following:
Rust is due to formation of oxides
Cast iron oxidises less
Steel oxidises most
All the above
Pick up the correct statement from the following:
The plastic bottles are made by the process of blowing
The application of thermo-setting resins on sheets of paper, is called laminating process
The plastic articles made by placing raw material in the desired moulds, is known as moulding process
All the above
For obtaining vinyl chloride acetate, the method used, is
Addition polymerization
Condensation polymerization
Co-polymerization
None of these
Shingle is
Decomposed laterite
Crushed granite
Water bound pebbles
Air weathered rock
A good quality stone absorbs water less than
5 %
10 %
15 %
25 %
Quick lime
Generates heat when added to water
Reacts with carbon dioxide
May be used for white-washing
All the above