The rocks which are formed due to cooling of magma at a considerable depth from earth's surface are called
Plutonic rocks
Hypabyssal rocks
Volcanic rocks
Igneous rocks
Correct Answer :
A. Plutonic rocks
Related Questions
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 frog of the brick in a brick masonry is generally kept on
Bottom face
Top face
Shorter side
Longer side
Refractory bricks resist
High temperature
Chemical action
Dampness
All the above
Which one of the following is an air binding material?
Gypsum
Acid-resistant cement
Quick lime
All of these
The term frog means
An apparatus to lift the stone
A depression on a face of brick
Vertical joint in a brick work
Soaking brick in water
A good brick earth should contain:
About 20% to 30% of alumina
About 50% to 60% of silica
Not more than 5% of lime
All the above
Quartzite, a metamorphic stone is
Hard
Brittle
Crystalline
All the above
Pick up the most favourable condition for the rapid growth of fungus for dry rot from the following:
Absence of sun light
Dampness
Presence of sap
All the above
The steel used for the manufacture of rails, is
Bessemer steel
Mild steel
Cast steel
Stainless steel
The minimum compressive strength of 2nd class bricks should be
75 kg/cm2
90 kg/cm2
100 kg/cm2
120 kg/cm2
Rapid hardening cement contains
Tri-calcium silicate
Tri-calcium aluminate
Tetra-calcium alumino-ferrite
Di-calcium silicate
Based on flow quality, the sequence of pipes is
A.C. pipes, G.I. pipes, C.I. pipes, PVC pipes
C.I. pipes, G.I. pipes, A.C. pipes, PVC pipes
C.I. pipes, G.I. pipes, PVC pipes, A.C. pipes
None of these
Pick up the correct statement from the following:
Plastics have generally low melting point
The coefficient of thermal expansion of plastics is about three times than that of steel
The acoustical boards prepared by impregnating fibre-glass with phenolic resins has absorption coefficient of about 0.67
All the above
For sanitary pipes and chemical stonewares,
Salt glazing is used
Lead glazing is used
Opaque glazing is used
None of these
According to IS specifications, the compressive strength of ordinary Portland cement after three days should not be less than
7 MPa
11.5 MPa
16 MPa
21 MPa
The commonly used lime in white washing, is
White lime
Fat lime
Hydraulic lime
Quick lime
Seasoning of timber is done for
Increasing moisture content
Decreasing moisture content
Increasing strength of timber
None to these
Pick up the rock which is not a sedimentary rock from the following:
Gravel
Sand stone
Gypsum
Dolerite
In stone masonry, if stones are so placed that their layers are parallel to the direction of load, they
Split easily
Are affected by moisture
Both (A) and (B)
None of these
The stone suitable for rubble masonry should be.
Hard
Tough
Heavy
Light
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
Red short iron cracks when bent due to the presence of
Sulphur
Carbon
Phosphorus
Silicon
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
Dolomite is a lime stone which contains carbonate of magnesia upto
15 %
20 %
25 %
45 %
The weight of a good quality brick when immersed in water for a period of 16 hours should not exceed the weight of dry brick
20 %
15 %
10 %
None of these
The stones obtained by blasting are used as
Ballast in railways
Aggregates for concrete
Road metal
All the above
Plastic bitumen is generally used for
Road pavements
Expansion joints
Crack fillings
None to these
The most valuable timber may be obtained from
Chir
Shishum
Sal
Teak
Gneiss is obtained from
Igneous rocks
Metamorphic rocks
Sedimentary rocks
Sedimentary metamorphic rocks
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