Bitumen paints offer
Pleasing surface
Hard surface
Smooth surface
Protective surface
Correct Answer :
D. Protective surface
Related Questions
Depending on the chemical composition and mechanical properties, iron may be classified as
Cast iron
Wrought iron
Steel
All the above
The property by virtue of which lime sets under water, is known as
Slacking
Setting
Hydraulicity
Calcining
Veneering means
Carving out designs on timber planks
Chemically treating timber planks
Thick layer of superior wood glued to inferior wood
Thin layer of superior wood glued to inferior wood
Expanded metal is
Manufactured from steel sheets
Used for reinforced concrete in road pavements
Measured in term of SWM (short way mesh) and LWM (long way mesh)
All the above
Seasoning is
A process of removing sap
Creosoting
Painting with sodium silicate
Coating with tar
Dolomite is a lime stone which contains carbonate of magnesia upto
15 %
20 %
25 %
45 %
Bitumen completely dissolves in
Carbon bisulphide
Chloroform
Coal tar
All of these
Geologically, marble is known as
Sedimentary rock
Igneous rock
Metamorphic rock
Stratified rock
According to ISI, bitumen is classified into
2 grades
4 grades
8 grades
10 grades
The tendency of a stone is, to split along:
Texture
Fracture
Cleavage
Structure
Teak wood is suitable for
Sports articles
Furnitures
Railway sleepers
All the above
The portion of a brick cut to form angles other than right angles in plan, is known as
Queen closer
King closer
Closer
Squint brick
Plastic
Is an organic substance
Consists of natural or synthetic binders
Finished products are rigid and stable at normal temperature
All the above
The plastics prepared from Vinyl resin are
Odourless
Non-toxic
Transparent
All of these
The operation of removal of impurities or clay adhering to iron ores, is known as
Dressing
Calcination
Roasting
Smelting
The minimum percentage of silica, alumina and ferric oxide in lime for white washing, is
20
15
5
0
Rapid hardening cement contains
Tri-calcium silicate
Tri-calcium aluminate
Tetra-calcium alumino-ferrite
Di-calcium silicate
Pig iron is manufactured from the ores by
Dressing
Calcination and roasting
Smelting
All the above
For a 50 kg cement bag water required, is
16.5 litres
18.5 litres
20.5 litres
22.5 litres
For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is
80 : 13 : 7
70 : 20 : 10
60 : 35 : 5
None of these
For lime concrete,
Slump is 50 to 75 mm
Flexural strength at 90 days is 0.2 N/mm2
Compressive strength at 90 days is 1.5 N/mm2
All the above
Which of the following stone is best suited for construction of piers and abutments of a railway bridge?
Granite
Sand stone
Lime stone
Quartzite
A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than
10 %
15 %
20 %
25 %
The ultimate tensile strength of structural mild steel is about
160 N/mm²
260 N/mm²
420 N/mm²
520 N/mm²
The commonly used raw material in the manufacture of cement, is
Slate
Sand stone
Lime stone
Basalt
Cast steel is manufactured by
Cementation process
Crucible process
Bessemer process
Open hearth process
A queen closer is a
Brick laid with its length parallel to the face or direction of wall
Brick laid with its breadth parallel to the face or direction of wall
Brick having the same length and depth as the other bricks but half the breadth
Brick with half the width at one end and full width at the other
The vehicle used in case of enamel paints is usually
Linseed oil
Water
Varnish
None of the above
The steel used for the manufacture of rails, is
Bessemer steel
Mild steel
Cast steel
Stainless steel
A mortar joint in masonry which is normal to the face of wall is known as
Bed joint
Wall joint
Cross joint
Bonded joint