Porcelain is used as:
Sanitary wares
Electric insulators
Storage vessels
Reactor chambers
Correct Answer :
D. Reactor chambers
Related Questions
The harmonious mixing of the clay ingredients, is known as
Weathering
Blending
Tempering
None of these
In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane of bedding is
Right angles
45°
60°
Parallel
The PVC doors and windows are preferred as they are
Rust proof
Rot proof
Water proof
All of these
Polymerization helps to improve the property of
Strength
Rigidity
Elasticity
All of these
A prime coat is given to steel work with
An oxide of iron paint
A mixture of white lead and lead paint
A special paint
Cement paint
Age of a tree may be ascertained by
Radius of its stem
Circumference of its stem
Number of branches
Number of annual rings
Due to attack of dry rot, the timber
Cracks
Shrinks
Reduces to powder
None of these
Chlorite, a green colour mineral is mainly derived from the decomposition of
Augite
Biotite
Hornblende
All of these
For slaking of 10 kg of CaO, the theoretical amount of water is
2.2 kg
1.5 kg
3.2 kg
None of these
The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called
Cementation process
Crucible process
Bessemer process
Open hearth process
Lime mortar is generally made with
Quick lime
Fat lime
Hydraulic lime
Plain lime
The rock generally used for roofing, is
Granite
Basalt
Slate
Pumice
Quartzite, a metamorphic stone is
Hard
Brittle
Crystalline
All the above
Stones used for rubble masonry must be
Soft
Hard
Light
Heavy
In paints, the pigment is responsible for
Durability
Colour
Smoothness
Glassy face
If water required for 1 bag of cement is 30 litres, the water cement ratio is:
0.40
0.50
0.60
None of these
The cracks caused by shrinkage of the exterior surface of the wood exposed to atmosphere, are called:
Radial shakes
Heart shakes
Wind cracks
Twisted fibres
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
After storage, the strength of cement
Decreases
Increases
Remains same
May increase or decrease
Geologically, marble is known as
Sedimentary rock
Igneous rock
Metamorphic rock
Stratified rock
Quick lime (or caustic lime)
Is obtained by the calcination of pure lime stone
Has great affinity to moisture
Is amorphous
All the above
Granite mainly composed of quartz and feldspar particles, is obtained from
Sedimentary rocks
Metamorphic rocks
Igneous rocks
All the above
The rocks having alumina or clay as their major constituents are known as
Siliceous rocks
Argillaceous rocks
Calcareous rocks
Sedimentary rocks
Spirit varnish generally consists of
Oil, wax and resin
Alcohol, wax and turpentine
Pigment and synthetic resin
Spirit and shellac
The commonly used lime in white washing, is
White lime
Fat lime
Hydraulic lime
Quick lime
Wrought iron contains carbon upto
0.25 %
1.0 %
1.5 %
2 %
Lacquer is
Oil paint
Distemper
Spirit varnish
None to these
The main constituent of fly-ash, is
Aluminium oxide
Silica
Ferrous oxide
All of these
The variety of pig iron used for the manufacture of steel by Bessemer process, is
Bessemer pig
Grey pig
White forge pig
Mottled pig
The cracks which extend from bark towards the sap wood in the cross section of a tree, are called
Radial shakes
Star shakes
Heart shakes
Cup shakes