Pick up the correct statement from the following:
Styrene resin is produced from ethylene which is made from petroleum
Styrene resin is light in weight
Styrene resin transmits ultraviolet waves of light
All the above
Correct Answer :
D. All the above
Related Questions
German silver is an alloy of
Zinc, lead and nickel
Silver, gold and lead
Copper, nickel and zinc
Copper, brass and zinc
A bull nose brick is not used for
Rounding off sharp corners
Pillars
Decoration purpose
Arches
The percentage of alumina and silica in good fire clay vary respectively is
25, 75
30, 70
35, 65
All of these
According to ISI, bitumen is classified into
2 grades
4 grades
8 grades
10 grades
The trunk of tree left after cutting all the branches is known as
Log
Batten
Plank
Baulk
Pig iron obtained from the furnace which is properly provided with fuel at a very high temperature, is called
Bessemer pig
Grey or foundry pig
White or forge pig
Mottled pig
The cement becomes unsound by the presence of excess
Sulphur
Magnesia
Lime
All of these
Stones used for rubble masonry must be
Soft
Hard
Light
Heavy
The preparation of surface of stone to obtain plain edges or to obtain stones of required size and shape is known as
Quarrying of stones
Blasting of stones
Seasoning of stones
Dressing of stones
Shingle is
Decomposed laterite
Crushed granite
Water bound pebbles
Air weathered rock
The main constituent of fly-ash, is
Aluminium oxide
Silica
Ferrous oxide
All of these
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
Snowcrete is one of the patent forms of
Distempers
Water proof cement paints
Enamel paints
Cellulose paints
The wedging is adopted for quarrying costly stratified rock such as
Laterite
Marble
Limestone
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
Which of the following trees yields hard wood?
Deodar
Chir
Shishum
Pine
The kiln which may work throughout the year, is
Clamp
Bull's kiln
Hoffman's kiln
None of these
A volatile substance added to a paint to make its application easy and smooth, is known as
Base
Solvent
Vehicle
None to these
Plywood is made from
Common timber
Bamboo fibre
Teak wood only
Asbestos sheets
Which of the following cements contains maximum percentage of dicalcium silicate?
Ordinary Portland cement
Low heat cement
Rapid hardening cement
Sulphate resisting cement
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
Pick up the most favourable condition for the rapid growth of fungus for dry rot from the following:
Absence of sun light
Dampness
Presence of sap
All the above
The thermosetting plastic
Becomes rigid when moulded at suitable pressure and temperature
At 127°C to 177°C permanently set and further application of heat does not soften it
Chars at 343°C
All the above
The stone suitable for rubble masonry should be.
Hard
Tough
Heavy
Light
Soundness of cement is tested by
Vicat's apparatus
Le-chatelier apparatus
Compressive strength testing apparatus
None of these
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
Which of the following gradients exerts maximum influence on properties of steel?
Iron
Carbon
Manganese
Sulphur
A first class brick when immersed in cold water for 24 hours should not absorb water more than
15 %
20 %
22 %
25 %
The steel used for the manufacture of rails, is
Bessemer steel
Mild steel
Cast steel
Stainless steel
A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than
10 %
15 %
20 %
25 %