Generally wooden moulds are made from
Ply wood
Shishum wood
Deodar wood
Teak wood
Correct Answer :
B. Shishum wood
Related Questions
Most commonly used solvent in oil paints, is
Petroleum
Spirit
Coal tar
Turpentine
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
Rapid hardening cement attains early strength due to
Larger proportion of lime grounded finer than normal cement
Lesser proportion of lime grounded coarser than normal cement
Lesser proportion of lime grounded finer than normal cement
Excess percentage of gypsum
Number of bricks required for one cubic metre of brick masonry is
400
450
500
550
A queen closer is a
Brick laid with its length parallel to the face or direction of wall
Brick laid with its breadth parallel to the face or direction of wall
Brick having the same length and depth as the other bricks but half the breadth
Brick with half the width at one end and full width at the other
Kaolin is chemically classified as
Metamorphic rock
Argillaceous rock
Calcareous rock
Siliceous rock
Bitumen felt
Is used as water proofing material
Is used as damp proofing material
Is made from bitumen and hessian fibres
All the above
Duco paints are
Plastic paints
Cellulose paints
Emulsion paints
Oil paints
The steel which contains fissures and cavities, is manufactured by
Cementation process
Crucible process
Bessemer process
Open hearth process
The clay to be used for manufacturing bricks for a large project, is dugout and allowed to weather throughout
The monsoon
The winter
The summer
None of these
Slump test for concrete is carried out, to determine
Strength
Durability
Workability
Water content
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 cements contains maximum percentage of dicalcium silicate?
Ordinary Portland cement
Low heat cement
Rapid hardening cement
Sulphate resisting cement
The percentage of alumina and silica in good fire clay vary respectively is
25, 75
30, 70
35, 65
All of these
Crushing strength of a first class brick should not be less than
3.5 N/mm²
7.0 N/mm²
10.5 N/mm²
14.0 N/mm²
If the iron ore contains clay as an impurity, the flux added during calcination, is
Clay
Lime stone
Argillaceous iron ore
All the above
Snowcrete is one of the patent forms of
Distempers
Water proof cement paints
Enamel paints
Cellulose paints
Blister steel
Is obtained by cementation process
Is full of fissures and cavities
Can be easily welded
All the above
The rocks formed by gradual deposition, are called
Sedimentary rocks
Igneous rocks
Metamorphic rocks
None of these
The most commonly used synthetic abrasive is
Aluminium carbide
Boric acid
Silicon
All of these
The main function of alumina in brick earth is
To impart plasticity
To make the brick durable
To prevent shrinkage
To make the brick impermeable
The initial setting time of lime-pozzolana, is
30 minutes
60 minutes
90 minutes
120 minutes
For sanitary pipes and chemical stonewares,
Salt glazing is used
Lead glazing is used
Opaque glazing is used
None of these
Which of the following stone is best suited for construction of piers and abutments of a railway bridge?
Granite
Sand stone
Lime stone
Quartzite
Pick up the correct statement from the following:
The low voltage porcelain is prepared by wet process
The high voltage porcelain is prepared by dry process
The low voltage porcelain is prepared by dry process
None of the above
The moisture content in a well seasoned timber is
4 % to 6 %
10 % to 12 %
15 % to 20 %
100 %
The colour of statuary marble used for sculptor's work, is
Red
Blue
White
Green
Seasoning of timber is done
To make it water proof
To paint its surface
To increase its temperature
To remove water
As per IS specifications, the maximum final setting time for ordinary Portland cement should be
30 minutes
1 hour
6 hours
10 hours
A ferrous metal is
Cast iron
Wrought iron
Steel
All the above