Building Materials Excess of alumina in brick earth makes the brick Impermeable To crack and warp on drying To lose cohesion Brittle and weak Impermeable To crack and warp on drying To lose cohesion Brittle and weak ANSWER DOWNLOAD EXAMIANS APP
Building Materials During pudding Molten metal is kept clear of the fuel Silicon forms a slag Carbon is converted into carbonic acid gas All listed here Molten metal is kept clear of the fuel Silicon forms a slag Carbon is converted into carbonic acid gas All listed here ANSWER DOWNLOAD EXAMIANS APP
Building Materials Linseed oil is used in paints as Thinner Base Drier Vehicle Thinner Base Drier Vehicle ANSWER DOWNLOAD EXAMIANS APP
Building Materials Rocks formed due to alteration of original structure due to heat and excessive pressure are called Igneous rocks None of these Sedimentary rocks Metamorphic rocks Igneous rocks None of these Sedimentary rocks Metamorphic rocks ANSWER DOWNLOAD EXAMIANS APP
Building Materials The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as Cementation process Crucible process Open hearth process Bessemer process Cementation process Crucible process Open hearth process Bessemer process ANSWER DOWNLOAD EXAMIANS APP
Building Materials Wrought iron contains carbon about 0.5% to 1.75% 0.1% to 0.25% None to these 1.5% to 5.5% 0.5% to 1.75% 0.1% to 0.25% None to these 1.5% to 5.5% ANSWER DOWNLOAD EXAMIANS APP