Building Materials During smelting process, the combination of fuel in the furnace Carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2 Forms carbon dioxide All listed here Carbon dioxide with carbon forms carbon mono-oxide Carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2 Forms carbon dioxide All listed here Carbon dioxide with carbon forms carbon mono-oxide ANSWER DOWNLOAD EXAMIANS APP
Building Materials Turpentine oil is used in paints as Drier Vehicle Thinner Base Drier Vehicle Thinner Base ANSWER DOWNLOAD EXAMIANS APP
Building Materials The cracks caused by shrinkage of the exterior surface of the wood exposed to atmosphere, are called: Wind cracks Radial shakes Twisted fibres Heart shakes Wind cracks Radial shakes Twisted fibres Heart shakes ANSWER DOWNLOAD EXAMIANS APP
Building Materials Bitumen emulsion is Used as anti-corrosive paint A paint All listed here A liquid containing bitumen in suspension Used as anti-corrosive paint A paint All listed here A liquid containing bitumen in suspension ANSWER DOWNLOAD EXAMIANS APP
Building Materials Calcination of iron ores is done To remove carbonic acid By roasting in heaps To remove moisture All listed here To remove carbonic acid By roasting in heaps To remove moisture All listed here ANSWER DOWNLOAD EXAMIANS APP
Building Materials Study the following statements. (i) Hydraulic lime is suitable for white washing, (ii) Fat lime is suitable for whitewashing, (iii) Hydraulic lime is suitable for making mortar, (iv) Fat lime is suitable for making mortar. (i) and (ii) (ii) and (iii) (iii) and (iv) (i) and (iv) (i) and (ii) (ii) and (iii) (iii) and (iv) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
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