Which of the following is a mineral?
Basalt
Granite
Quartz
Syenite
Correct Answer :
C. Quartz
Related Questions
The cracks which extend from bark towards the sap wood in the cross section of a tree, are called
Radial shakes
Star shakes
Heart shakes
Cup shakes
Which of the following cements contains maximum percentage of dicalcium silicate?
Ordinary Portland cement
Low heat cement
Rapid hardening cement
Sulphate resisting cement
Cast steel is manufactured by
Cementation process
Crucible process
Bessemer process
Open hearth process
Knots in timber are
Defects caused by crushing fibres
Splits radiating from the centre
Speckled strains
Signs of branches cut off
A pug mill is used for
Softening brick earth
Moulding brick earth
Tempering brick earth
Providing brick earth
The most commonly used base for timber painting, is
Red lead
Zinc white
White lead
Titanium white
Pick up the synthetic resin from the following:
Urea resin
Phenolic resin
Resorcinol resin
All of these
Portland pozzolana cement possesses
Higher resistance to chemical attack
Lower heat of hydration
Lower shrinkage on drying
All the above
Which of the following should be used for hearting of thicker walls?
Headers
Stretchers
Brick bats
Queen closer
The rock generally used for roofing, is
Granite
Basalt
Slate
Pumice
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
The tendency of a stone is, to split along:
Texture
Fracture
Cleavage
Structure
Which of the following has more fire resisting characteristics?
Marble
Lime stone
Compact sand stone
Granite
The minimum percentage of silica, alumina and ferric oxide in lime for white washing, is
20
15
5
0
The rocks which are formed due to pouring of magma at the earth's surface are called
Plutonic rocks
Hypabyssal rocks
Volcanic rocks
Igneous rocks
Plastic asphalt is
Used as a water proofing layer over roof
A mixture of cement and asphalt
A natural asphalt
A refinery product
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
Plastics are compounds of carbon with element
Hydrogen
Nitrogen
Oxygen
All of these
The ultimate tensile strength of structural mild steel is about
160 N/mm²
260 N/mm²
420 N/mm²
520 N/mm²
Resins are
Not soluble in water
Soluble in spirit
Used in varnishes
Left behind on evaporation of oil
A stone is rejected if it absorbs water more than
5 %
10 %
15 %
20 %
A heavy stone is suitable for
Arches
Rubble masonry
Roads
Retaining walls
Chemically, marble is known as
Metamorphic rock
Argillaceous rock
Calcareous rock
Siliceous rock
Dry rot
Cracks the timber
Reduces the strength of timber
Reduces the timber to powder
Spoils the appearance of timber
The size of mould for bricks, is generally kept
A little large to specified size
A little small to specified size
Equal to specified size
10% larger than specified size
Pick up the compound responsible for early strength of cement from the following:
Tetra-calcium alumino-ferrite
Tri-calcium silicate
Tri-calcium aluminate
Di-calcium silicate
Slump test for concrete is carried out, to determine
Strength
Durability
Workability
Water content
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
The most important constituent of an oil paint, is
Thinner
Vehicle
Pigment
All the above
The type of bond provided in brick masonry for carrying heavy loads is
Single Flemish bond
Double Flemish bond
English bond
Zigzag bond