The tendency of a stone is, to split along:
Texture
Fracture
Cleavage
Structure
Correct Answer :
C. Cleavage
Related Questions
The timber having maximum resistance against white ants, is obtained from
Chir
Shishum
Sal
Teak
Plywood is normally available
1 mm thick
2 mm thick
2 to 3 mm thick
3 mm to 4 mm thick
Gneiss is obtained from
Igneous rocks
Metamorphic rocks
Sedimentary rocks
Sedimentary metamorphic rocks
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
The coefficient of hardness of stones used in road work should be greater than
10
12
15
17
The wedging is adopted for quarrying costly stratified rock such as
Laterite
Marble
Limestone
All the above
Excess of alumina in brick earth makes the brick
Impermeable
Brittle and weak
To lose cohesion
To crack and warp on drying
Initial setting of cement is caused due to
Tri-calcium silicate
Di-calcium silicate
Tri-calcium aluminate
Tetra calcium alumino ferrite
The main constituent which imparts hydraulicity to hydraulic lime is
Calcium oxide
Silica
Clay
Water
Percentage content of silica in window glass, is
40 to 45
50 to 55
60 to 65
70 to 75
Percentage of carbon content in mild steel is
Less than 0.25
Between 0.25 and 0.7
Between 0.7 and 1.5
Greater than 1.5
Dorry's testing machine is used for
Crushing test of stone
Hardness test of stone
Impact test of stone
Water absorption test
Lacquer paints
Are generally applied on structural steel
Are less durable as compared to enamel paints
Consist of resin and nitro-cellulose
All the above
The initial setting time of lime-pozzolana, is
30 minutes
60 minutes
90 minutes
120 minutes
Kaolin is chemically classified as
Metamorphic rock
Argillaceous rock
Calcareous rock
Siliceous rock
Putty is
Made with finely powdered chalk and linseed oil
Used for fixing glass panes
Softened by a solution of pearl ash and quick-lime soaked in water
All the above
The yield strength and tensile strength of low carbon steel may be improved by the addition of
Manganese
Chromium
Nickel
Vanadium
Bitumen paints offer
Pleasing surface
Hard surface
Smooth surface
Protective surface
Plywood is made by bonding together thin layers of wood in such a way that the angle between grains of any layer to grains of adjacent layers is
0°
30°
45°
90°
The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively:
15, 75, 10
75, 10, 15
10, 15, 75
10, 75, 15
Pick up the correct statement from the following:
The theory of formation of concrete is based on the phenomena of formation of voids
The bulking of sand is taken into account while volumetric proportioning of the aggregates
The dry sand and the sand completely flooded with water, have practically the same volume
All the above
Paints with white lead base are suitable for painting of
Wood work
Iron work
Both wood work and iron work
None of the above
The practical limit of moisture content achieved in air drying of timber is
5 %
15 %
25 %
35 %
Asphalt is obtained from
Petroleum distillation
Bitumen distillation
Plastic distillation
None of these
Mild steel is used for
Structural works in beams, joints and girders
Small sized water pipes
Columns and struts
None of these
The trunk of tree left after cutting all the branches is known as
Log
Batten
Plank
Baulk
Clay and silt content in a good brick earth must be at least
50 %
40 %
30 %
25 %
Pick up the correct statement from the following:
Roasting is not necessary if iron ore is an oxide
Impurities float on the molten iron as slag
The slag contains lime about 45%
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
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