Building Materials The stones obtained by blasting are used as All listed here Aggregates for concrete Road metal Ballast in railways All listed here Aggregates for concrete Road metal Ballast in railways ANSWER DOWNLOAD EXAMIANS APP
Building Materials During smelting process, the combination of fuel in the furnace All listed here Forms carbon dioxide 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 Carbon dioxide with carbon forms carbon mono-oxide Carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2 ANSWER DOWNLOAD EXAMIANS APP
Building Materials The main ingredients of Portland cement are Lime and alumina Lime and iron Lime and silica Silica and alumina Lime and alumina Lime and iron Lime and silica Silica and alumina ANSWER DOWNLOAD EXAMIANS APP
Building Materials The basic purpose of a retarder in concrete is To render the concrete more water tight To increase the initial setting time of cement paste in concrete To decrease the initial setting time of cement paste in concrete To improve the workability of concrete mix To render the concrete more water tight To increase the initial setting time of cement paste in concrete To decrease the initial setting time of cement paste in concrete To improve the workability of concrete mix 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 Bessemer process Crucible process Cementation process Open hearth process Bessemer process Crucible process Cementation process Open hearth process ANSWER DOWNLOAD EXAMIANS APP
Building Materials Wrought iron contains carbon about 0.1% to 0.25% 1.5% to 5.5% None to these 0.5% to 1.75% 0.1% to 0.25% 1.5% to 5.5% None to these 0.5% to 1.75% ANSWER DOWNLOAD EXAMIANS APP
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