Lime stone is not a
1.sedimentary rock
2. stratified rock
3.aqueous rock
4.metamorphic rock.
Posted Date:-2021-03-26 07:03:28
PVC stands for
1.plastic very compact
2.polythene vinyl chloride
3.polythene vinyl carbon
4.polythene vanadium carbide.
Posted Date:-2021-03-26 07:03:28
The kiln which may work throughout the year, is
1.Clamp
2.Bull's kiln
3.Hoffman's kiln
4.none of these.
Posted Date:-2021-03-26 07:03:28
A piece of timber whose thickness and width are respectively 5 cm and 10 cm is called
1.slate
2.plank
3.board
4.strip.
Posted Date:-2021-03-26 07:03:28
A volatile substance added to a paint to make its application easy and smooth, is known as
1.base
2.solvent
3.vehicle
4.none to these.
Posted Date:-2021-03-26 07:03:28
Age of a tree may be ascertained by
1. radius of its stem
2. radius of its stem
3.number of branches
4.number of annual rings.
Posted Date:-2021-03-26 07:03:28
Cement paints usually
1.contain hydrated lime
2.contain 5% to 10% colour pigments
3.are prepared with white cement
4.contain 5% sodium chloride
Posted Date:-2021-03-26 07:03:28
Generally wooden moulds are made from
1.ply wood
2.shisham wood
3.deodar wood
4.teak wood
Posted Date:-2021-03-26 07:03:28
Mastic asphalt is normally used for
1.sound insulation
2.water proofing
3.fire proofing
4.none to these.
Posted Date:-2021-03-26 07:03:28
Pick up the correct statement from the following:
1.Slaked lime contains calcium hydroxide
2.Quick lime contains calcium oxide
3.Slaked lime may be obtained from quick lime
4.All the above.
Posted Date:-2021-03-26 07:03:28
Pig iron is manufactured from the ores by
1.dressing
2.calcination and roasting
3.smelting
4.all the above.
Posted Date:-2021-03-26 07:03:28
Plywood is obtained by gluing wooden sheets at
1. 100 to 150 N/cm2
2.100 to 130°C
3.both (a) and (b)
4.Neither (a) nor (b).
Posted Date:-2021-03-26 07:03:28
Putty is
1.made with finely powdered chalk and linseed oil
2.used for fixing glass panes
3.softened by a solution of pearl ash and quick-lime soaked in water
4.all of these.
Posted Date:-2021-03-26 07:03:28
Quick lime
1.generates heat when added to water
2.reacts with carbon dioxide
3.may be used for white-washing
4.all the above.
Posted Date:-2021-03-26 07:03:28
The cement becomes unsound by the presence of excess
1.sulphur
2.magnesia
3.lime
4.All of these.
Posted Date:-2021-03-26 07:03:28
The initial setting time of hydraulic lime, is
1.30 minutes
2.60 minutes
3.90 minutes
4.120 minutes
Posted Date:-2021-03-26 07:03:28
The low voltage porcelain is mainly used for
1.switch block
2.insulating tubes
3.lamp sockets
4.All of these.
Posted Date:-2021-03-26 07:03:28
The minimum compressive strength of 1st class bricks should be
1.75 kg/cm2
2. 90 kg/cm2
3.100 kg/cm2
4.120 kg/cm2
Posted Date:-2021-03-26 07:03:28
The portion of a brick cut to form angles other than right angles in plan, is known as
1.queen closer
2.king closer
3.closer
4.squint brick.
Posted Date:-2021-03-26 07:03:28
The size of modular bricks, is
1.10 x 10 x 9 cm
2.19 x 9 x 9 cm
3.22.5 x 10 x 8.5 cm
4.22.5 x 8.0 x 9 cm.
Posted Date:-2021-03-26 07:03:28