Plastic bitumen is generally used for
Road pavements
Expansion joints
Crack fillings
None to these
Correct Answer :
C. Crack fillings
Related Questions
Chlorite, a green colour mineral is mainly derived from the decomposition of
Augite
Biotite
Hornblende
All of these
Cast iron is used for
Structural works in beams
Small sized water pipes
Columns and struts
None to these
The main ingredients of Portland cement are
Lime and silica
Lime and alumina
Silica and alumina
Lime and iron
Bitumen may be dissolved in
Carbondioxide
Water
Sodium chloride
Carbon disulphide
For the manufacture of stainless steel, steel is mixed with
Chromium
Nickel
Tungsten
None of these
Priming consists of
One part of white lead, 8 parts of chalk and four parts of twice boiled linseed oil
8 parts of white lead, one part of chalk and four parts of twice boiled linseed oil
One part of white lead, 8 parts of chalk and one part of linseed oil
None to these
Lime stone is not a
Sedimentary rock
Stratified rock
Aqueous rock
Metamorphic rock
Bessemer process is used for the manufacture of
Pig iron
Cast iron
Wrought iron
Steel
Polymerization helps to improve the property of
Strength
Rigidity
Elasticity
All of these
The percentage of alumina and silica in good fire clay vary respectively is
25, 75
30, 70
35, 65
All of these
Which of the following cements contains maximum percentage of dicalcium silicate?
Ordinary Portland cement
Low heat cement
Rapid hardening cement
Sulphate resisting cement
The pigment used in paints for corrosive resistance, is
White lead
Ferrous oxide
Zinc white
Red lead
Plywood has the advantage of
Greater tensile strength in longer direction
Greater tensile strength in shorter direction
Same tensile strength in all directions
None of the above
Plywood is made by bonding together thin layers of wood in such a way that the angle between grains of any layer to grains of adjacent layers is
0°
30°
45°
90°
The stone suitable for rubble masonry should be.
Hard
Tough
Heavy
Light
Galvanising means covering iron with a thin coat of
Tin
Zinc
Glaze
Coal tar
The plywood
Has good strength along the panel only
Can be spilt in the plane of the panel
Has greater impact resistance to blows than ordinary wood
Cannot be bent more easily than ordinary wood of same thickness
Spalling hammer is used for
Driving wooden headed chisels
Rough dressing of stones
Carving of stones
Breaking small projection of stones
The most important constituent of an oil paint, is
Thinner
Vehicle
Pigment
All the above
Number of bricks required for one cubic metre of brick masonry is
400
450
500
550
Rapid hardening cement contains
Tri-calcium silicate
Tri-calcium aluminate
Tetra-calcium alumino-ferrite
Di-calcium silicate
Fibre glass
Retains heat-longer
Has a higher strength to weight ratio
Is shock proof and fire retardant
All the above
Quartzite is a
Metamorphic rock
Argillaceous rock
Calcareous rock
Siliceous rock
For a 50 kg cement bag water required, is
16.5 litres
18.5 litres
20.5 litres
22.5 litres
German silver is an alloy of
Zinc, lead and nickel
Silver, gold and lead
Copper, nickel and zinc
Copper, brass and zinc
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
Strength of cement concrete primarily depends upon
Quality of water
Quantity of aggregate
Quantity of cement
Water-cement ratio
The steel used for the manufacture of rails, is
Bessemer steel
Mild steel
Cast steel
Stainless steel
The main constituent of cement which is responsible for initial setting of cement is
Di-calcium silicate
Tri-calcium silicate
Tri-calcium aluminate
All of the above
Which of the following trees yields hard wood?
Deodar
Chir
Shishum
Pine