Pick up the polymineralic rock from the following: Quartz sand Pure gypsum Granite Magnesite TRUE ANSWER : ? YOUR ANSWER : ?
Bitumen felt Is used as damp proofing material Is used as water proofing material Is made from bitumen and hessian fibres All listed here TRUE ANSWER : ? YOUR ANSWER : ?
According to ISI, bitumen is classified into 8 grades 10 grades 4 grades 2 grades TRUE ANSWER : ? YOUR ANSWER : ?
Good quality cement contains higher percentage of Tetra calcium alumino ferrite Di-calcium silicate Tri-calcium aluminate Tri-calcium silicate TRUE ANSWER : ? YOUR ANSWER : ?
Generally wooden moulds are made from Deodar wood Shishum wood Ply wood Teak wood TRUE ANSWER : ? YOUR ANSWER : ?
The commonly used drying oil for oil paints, is Olive oil Linseed oil Acetate of lead Kerosene oil TRUE ANSWER : ? YOUR ANSWER : ?
Sandstone is a (i) Sedimentary rock (ii) Aqueous rock (iii) Siliceous rock Both (i) and (ii) Both (i) and (iii) All (i), (ii) and (iii) Only (i) TRUE ANSWER : ? YOUR ANSWER : ?
During smelting process, the combination of fuel in the furnace Carbon dioxide with carbon forms carbon mono-oxide Carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2 All listed here Forms carbon dioxide TRUE ANSWER : ? YOUR ANSWER : ?
Advantage of a clamp compared to a kiln for burning bricks is that It has less initial cost It gives more output of first class bricks It takes less time for burning It is suitable when bricks are required in large numbers TRUE ANSWER : ? YOUR ANSWER : ?
The plywood Cannot be bent more easily than ordinary wood of same thickness Has good strength along the panel only Has greater impact resistance to blows than ordinary wood Can be spilt in the plane of the panel TRUE ANSWER : ? YOUR ANSWER : ?