The plastics prepared from Vinyl resin are
Odourless
Non-toxic
Transparent
All of these
Correct Answer :
D. All of these
Related Questions
The slenderness ratio for masonry walls should not be more than
10
20
30
40
Which of the following is a rock?
Quartz
Mica
Gypsum
None of the above
The type of steel used for precision levelling staff, is
Titanium steel
Carbon steel
Invar
Stainless steel
The size of mould for bricks, is generally kept
A little large to specified size
A little small to specified size
Equal to specified size
10% larger than specified size
The commonly used drying oil for oil paints, is
Olive oil
Linseed oil
Kerosene oil
Acetate of lead
Pick up the correct statement from the following:
Soft stones are required for carving
Light stones are required for arches
Hard stones are required to stand high pressure
All the above
Which of the following sedimentary rocks changes into quartzite by metamorphic action?
Sand stone
Lime stone
Shale
Gypsum
A piece of timber whose thickness and width are respectively 5 cm and 10 cm is called
Slate
Plank
Board
Strip
The timber having maximum resistance against white ants, is obtained from
Chir
Shishum
Sal
Teak
Wrought iron contains carbon about
1.5% to 5.5%
0.5% to 1.75%
0.1% to 0.25%
None to these
Basalt is
Sedimentary rock
Metamorphic rock
Extrusive igneous rock
Intrusive igneous rock
Plywood is made from
Common timber
Bamboo fibre
Teak wood only
Asbestos sheets
Which one of the following is an air binding material?
Gypsum
Acid-resistant cement
Quick lime
All of these
Pick up the correct statement regarding low heat cement from the following:
It possesses less compressive strength
Its initial setting time is about one hour
Its final setting time is about 10 hours
All the above
The usual percentages of clay and metal in cermet are:
50%, 50%
60%, 40%
70%, 30%
80%, 20%
Bituminous fells are used for
Covering A.C. sheets
Covering sloping roofs
D.P.C.
None to these
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 main constituent of fly-ash, is
Aluminium oxide
Silica
Ferrous oxide
All of these
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
Bitumen may be dissolved in
Carbondioxide
Water
Sodium chloride
Carbon disulphide
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
Lacquer paints
Are generally applied on structural steel
Are less durable as compared to enamel paints
Consist of resin and nitro-cellulose
All the above
First class timber has an average life of
Less than one year
1 to 5 years
5 to 10 years
More than 10 years
The stretcher bond in brick masonry can be used only when the thickness of wall is
90 mm
180 mm
190 mm
280 mm
Cast iron contains carbon approximately
1.5% to 5.5%
0.05% to 1.75%
0.250 %
None to these
Due to attack of dry rot, the timber
Cracks
Shrinks
Reduces to powder
None of these
Pick up the volcanic rock from the following:
Granite
Dolerite
Basalt
All the above
The weight of 1 m3 of brick earth, is about
1200 kg
1500 kg
1800 kg
2000 kg
A well seasoned timber may contain moisture up to
4 to 6 %
6 to 8 %
8 to 10 %
10 to 12 %
The most durable varnish is
Water varnish
Spirit varnish
Turpentine varnish
Oil varnish