Sewer pipes are made of
Earthen ware
Stone ware
Refractory clay
All the above
Correct Answer :
B. Stone ware
Related Questions
If P is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is
0.70 P
0.75 P
0.80 P
0.85 P
The constituent of cement which is responsible for all the undesirable properties of cement is
Di-calcium silicate
Tri-calcium silicate
Tri-calcium aluminate
Tetra calcium alumino ferrite
Pick up the correct statement from the following:
Rust is due to formation of oxides
Cast iron oxidises less
Steel oxidises most
All the above
The steel used for the manufacture of rails, is
Bessemer steel
Mild steel
Cast steel
Stainless steel
The hardest rock is
Marble
Diamond
Talc
Quartz
The age of a tree can be known by examining
Cambium layer
Annular rings
Medullary rays
Heart wood
Minimum thickness of wall where single Flemish bond can be used is
Half brick thick
One brick thick
One and a half bricks thick
Two bricks thick
The initial setting time of lime-pozzolana, is
30 minutes
60 minutes
90 minutes
120 minutes
Based on its dry weight, a freshly felled tree may contain water
25 %
50 %
75 %
100 %
Bitumen may be dissolved in
Carbondioxide
Water
Sodium chloride
Carbon disulphide
The main constituent of fly-ash, is
Aluminium oxide
Silica
Ferrous oxide
All of these
Quick lime
Generates heat when added to water
Reacts with carbon dioxide
May be used for white-washing
All the above
The rocks having alumina or clay as their major constituents are known as
Siliceous rocks
Argillaceous rocks
Calcareous rocks
Sedimentary rocks
The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as
Cementation process
Crucible process
Bessemer process
Open hearth process
Wrought iron contains carbon about
1.5% to 5.5%
0.5% to 1.75%
0.1% to 0.25%
None to these
Commonly used thinner in
Lacquer paints, is alcohol
Cellulose paints is ethyl acetate
Oil paints, is naphtha
All the above
Stones used for rubble masonry must be
Soft
Hard
Light
Heavy
The tendency of a stone is, to split along:
Texture
Fracture
Cleavage
Structure
Mastic asphalt is
Acid resisting material
Non-corrosive material
Corrosive material
Heating-resisting material
Which one of the following is an air binding material?
Gypsum
Acid-resistant cement
Quick lime
All of these
Smith's test of stones is performed to find out
The presence of soluble matter of stone
The compressive strength of the stone
The hardness of the stone
The toughness of the stone
The plastics prepared from Vinyl resin are
Odourless
Non-toxic
Transparent
All of these
The method of addition polymerization is used for obtaining:
Polystyrene
Polypropylene
Polyvinylchloride
All of these
Asbestos cement
Is brittle
Warps due to changes in humidity
Strength is lowered when saturated by water
All of the above
Stainless steel contains
18% of chromium and 8% nickel
8% of chromium and 18% of nickel
12% of chromium and 36% of nickel
36% of chromium and 12% of nickel
Which of the following bricks are used for lining of furnaces?
Over-burnt bricks
Under-burnt bricks
Refractory bricks
First class bricks
Assertion A : Paints with white lead base are not recommended for painting of iron works. Reason R : Paints with white lead base do not check rusting of iron. Select your answer according to the coding system given below:
Both A and R is true and, R is the correct explanation of A
Both A and R is true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
Iron ore may contain
Carbon
Silicon
Phosphorus and manganese
All the above
Pick up the correct characteristic of Pyroxene from the following:
It forms octagonal crystals
It converts to chlorine by hydration
Its density is 2.3 to 3.6 g/cm2
All the above
Sapwood consists of
Innermost annular rings around the pith
Portion of timber between heartwood and cambium layer
Thin layers below the bark
Thin fibre which extends from the pith outwards and holds the annular rings together