Glazing is used to make earthenware
Hard
Soft
Porous
Impervious
Correct Answer :
D. Impervious
Related Questions
In arches, stratified stones are placed so that their planes are
Parallel
Perpendicular
Radial
None of 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 property by virtue of which lime sets under water, is known as
Slacking
Setting
Hydraulicity
Calcining
Cast steel is manufactured by
Cementation process
Crucible process
Bessemer process
Open hearth process
Quick setting cement is produced by adding
Less amount of gypsum in very fine powdered form
More amount of gypsum in very fine powdered form
Aluminium sulphate in very fine powdered form
Pozzolana in very fine powdered form
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
The most commonly used base for timber painting, is
Red lead
Zinc white
White lead
Titanium white
The most valuable timber may be obtained from
Chir
Shishum
Sal
Teak
Stones used for ornamental work must be
Soft
Hard
Light
Heavy
French polish is
Oil paint
Distemper
Spirit varnish
None to these
Plastic
Is an organic substance
Consists of natural or synthetic binders
Finished products are rigid and stable at normal temperature
All the above
The basic purpose of a retarder in concrete is
To increase the initial setting time of cement paste in concrete
To decrease the initial setting time of cement paste in concrete
To render the concrete more water tight
To improve the workability of concrete mix
Refractory bricks resist
High temperature
Chemical action
Dampness
All the above
Teak wood is suitable for
Sports articles
Furnitures
Railway sleepers
All the above
Geologically, marble is known as
Sedimentary rock
Igneous rock
Metamorphic rock
Stratified rock
The silica is used for preparing
Silica bricks
Coke oven
Lining for glass furnaces
All of these
Inner part of a timber log surrounding the pitch, is called
Sapwood
Cambium layer
Heart wood
None to these
Pozzolana (or surkhi) is used in lime
To impart hydraulicity
To prevent shrinkage
To decrease the cost of construction
To decrease the setting time
Pick up the correct statement from the following:
In basic Bessemer process, the steel heats the converter
In open-hearth process, the furnace heats the steel
In Siemens process, the impurities of pig iron are oxidised by the oxygen of the ore
All the above
A pug mill is used for
Softening brick earth
Moulding brick earth
Tempering brick earth
Providing brick earth
A heavy stone is suitable for
Arches
Rubble masonry
Roads
Retaining walls
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
For the manufacture of Portland cement, the proportions of raw materials used, are
Lime 63% ; silica 22% ; other ingredients 15%
Lime 22% ; silica 63% ; other ingredients 15%
Silica 40% ; lime 40% ; other ingredients 20%
Silica 70% ; lime 20% ; other ingredients 10%
Red short iron cracks when bent due to the presence of
Sulphur
Carbon
Phosphorus
Silicon
Ground glass
Is made by grinding its one side
Is made by melting powdered glass paints surface
Is used for getting light without transparency
All the above
Which of the following ingredients of the brick earth enables the brick to retain its shape?
Alumina
Silica
Iron
Magnesia
Duco paints are
Plastic paints
Cellulose paints
Emulsion paints
Oil paints
Lacquer is
Oil paint
Distemper
Spirit varnish
None to these
The ratio of the thickness of web to that of flange of steel rolled structural beams and channels is
Less than 1
Equal to 1
Greater than 1
Less than 1 in beams but greater than 1 in channels
Pick up the correct statement from the following: Method of sawing timber
Tangentially to annual rings, is known as tangential method
In four quarters such that each board cuts annual rings at angles not less than 45°, is known as quarter sawing method
Cut out of quarter logs, parallel to the medullary rays and perpendicular to annual rings, is known as radial sawing
All the above