Lime putty
Is made from hydraulic lime
Is made by adding lime to water
Can be used only upto three days
All of above
Correct Answer :
D. All of above
Related Questions
The percentage of water for normal consistency, is
5% to 15%
10% to 25%
15% to 25%
20% to 30%
In the method of condensation polymerization,
Low-molecular substances are removed from the high molecular substance
The reaction proceeds with an evolution of ammonia
The reaction proceeds with an evolution of hydrogen chloride
All 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°
Stones used for ornamental work must be
Soft
Hard
Light
Heavy
Mastic asphalt is
Water proof
Fire proof
Elastic
All the above
Turpentine oil is used in paints as
Thinner
Vehicle
Base
Drier
The amount of water used for one kg of distemper is
0.2 liter
0.4 liter
0.6 liter
0.8 liter
Bitumen emulsion is
A liquid containing bitumen in suspension
A paint
Used as anti-corrosive paint
All the above
Pick up the correct statement from the following:
Blisters in the finished wrought iron, are caused due to the reaction between oxide of iron and carbon
The edges of a finished wrought iron are rough due to red shortage
Pig iron (charcoal) is manufactured from magnetic ore (Fe3O4)
All the above
Pick up the plutonic rock from the following:
Granite
Dolerite
Basalt
All the above
The material generally not used as extender in paints, is
Powdered silica
Gypsum
Talc
Zinc white
Lacquer is
Oil paint
Distemper
Spirit varnish
None to these
Which one of the following polymers is obtained from condensation polymerization?
Phenol formaldehyde
Carbamide
Melamine-formaldehyde
All of these
Elastomers can extend upto
Five times their original dimensions
Seven times their original dimensions
Ten times their original dimensions
Three times their original dimensions
Stainless steel resists corrosion due to
Carbon
Sulphur
Vanadium
Chromium
A good brick earth should contain:
About 20% to 30% of alumina
About 50% to 60% of silica
Not more than 5% of lime
All the above
Pick up the correct statement from the following:
Acid test is done to find out the weathering quality of stones
Attrition test is done to find out the rate of wear of stones which are used in road construction
Crushing test is done to find out the compressive strength of the stone
All the above
Initial setting of cement is caused due to
Tri-calcium silicate
Di-calcium silicate
Tri-calcium aluminate
Tetra calcium alumino ferrite
Which of the following gradients exerts maximum influence on properties of steel?
Iron
Carbon
Manganese
Sulphur
Durability of building stone is affected by its
Chemical composition
Texture
Resistance to atmosphere
All the above
The normal consistency of ordinary Portland cement is about
10 %
20 %
30 %
40 %
Vanadium steel is generally used for
Railway switches and crossing
Bearing balls
Magnets
Axles and springs
Wrought iron contains carbon about
1.5% to 5.5%
0.5% to 1.75%
0.1% to 0.25%
None to these
The kiln which may work throughout the year, is
Clamp
Bull's kiln
Hoffman's kiln
None of these
Gypsum consists of
H₂S and CO₂
CaSO4 and H₂O
Lime and H₂O
CO₂ and calcium
Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth?
Lime stone and alumina
Silica and alkalies
Alumina and iron
Alkalies and magnesium
For testing compressive strength of cement, the size of cube used is
50 mm
70.6 mm
100 mm
150 mm
Quick lime
Generates heat when added to water
Reacts with carbon dioxide
May be used for white-washing
All the above
Plywood is made from
Common timber
Bamboo fibre
Teak wood only
Asbestos sheets
The steel which contains fissures and cavities, is manufactured by
Cementation process
Crucible process
Bessemer process
Open hearth process