The pressure acting on the stones in stone masonry construction should be
Along the direction of bedding planes
At 45° to the direction of bedding planes
At 60° to the direction of bedding planes
Perpendicular to the direction of bedding planes
Correct Answer :
D. Perpendicular to the direction of bedding planes
Related Questions
A well seasoned timber may contain moisture up to
4 to 6 %
6 to 8 %
8 to 10 %
10 to 12 %
Pick up the correct statement from the following:
The plywoods do not split or crack due to changes in atmosphere
The commercial plywoods are available upto 150 cm wide and upto 300 cm long
The plywoods possess uniform tensile strength in all directions
All the above
Polymerization helps to improve the property of
Strength
Rigidity
Elasticity
All of these
The kiln which may work throughout the year, is
Clamp
Bull's kiln
Hoffman's kiln
None of these
For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is
80 : 13 : 7
70 : 20 : 10
60 : 35 : 5
None of these
Glazing is used to make earthenware
Hard
Soft
Porous
Impervious
Number of bricks required for one cubic metre of brick masonry is
400
450
500
550
Paints with white lead base are suitable for painting of
Wood work
Iron work
Both wood work and iron work
None of the above
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
Strength of cement concrete primarily depends upon
Quality of water
Quantity of aggregate
Quantity of cement
Water-cement ratio
Plastic bitumen is generally used for
Road pavements
Expansion joints
Crack fillings
None to these
Permanent magnets are made of high carbon steel and
15% of cobalt
20% of cobalt
35% of cobalt
45% of cobalt
Elastomers can extend upto
Five times their original dimensions
Seven times their original dimensions
Ten times their original dimensions
Three times their original dimensions
The commonly used drying oil for oil paints, is
Olive oil
Linseed oil
Kerosene oil
Acetate of lead
Pug mill is used for
Preparation of clay
Moulding of clay
Drying of bricks
Burning of bricks
Jumper is a tool used for
Testing of stones
Quarrying of stones
Dressing of stones
None of the above
A piece of timber whose thickness and width are respectively 5 cm and 10 cm is called
Slate
Plank
Board
Strip
Pick up the plutonic rock from the following:
Granite
Dolerite
Basalt
All the above
Sand stone is
Sedimentary rock
Metamorphic rock
Igneous rock
Volcanic rock
The main constituent of cement which is responsible for initial setting of cement is
Di-calcium silicate
Tri-calcium silicate
Tri-calcium aluminate
All of the above
Pick up the correct statement from the following:
Quick lime is obtained by burning pure lime stone
Hydraulic lime is obtained by burning lime stone containing clay 5% to 30%
Poor lime is obtained by burning lime stone containing impurities more than 5%
All the above
If the iron ore contains clay as an impurity, the flux added during calcination, is
Clay
Lime stone
Argillaceous iron ore
All the above
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
Second class bricks
Are of dark brown colour
Produce a metallic sound when struck
Are well burnt
Are under burnt
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:
Hornblende mineral is brittle
Muscovite is also known as white mica and potash mica
Biotite is also known as black-mica
All the above
The steel which contains fissures and cavities, is manufactured by
Cementation process
Crucible process
Bessemer process
Open hearth process
For construction of structures under water, the type of lime used, is
Hydraulic lime
Fat lime
Quick lime
Pure lime
Stucco paints are suitable for
Stone masonry
Brick walls
Both (A) and (B)
Neither (A) nor (B)
Good quality sand is never obtained from
River
Lake
Sea
Gravel powder