Chemical Engineering Basics Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of portland cement. The component of Portland cement which first hardens is 3CaO . SiO₂ 5CaO . 3 Al2O₃ 3CaO . Al2O₃ 2CaO . SiO₂ 3CaO . SiO₂ 5CaO . 3 Al2O₃ 3CaO . Al2O₃ 2CaO . SiO₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Ignition of fuel in a diesel engine is by None of these Fuel injection Hot compressed air Spark None of these Fuel injection Hot compressed air Spark ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Lime contains about 90% CaO. Percentage CaO present in limestone is about 50 70 80 25 50 70 80 25 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Scaling occurs in boiler tubes due to the fact that, the solubility of Ca(OH)₂ __________ with increasing temperature. Decreases Increases None of these Shows inversion of solubility Decreases Increases None of these Shows inversion of solubility ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Boiler draught of 10 mm water column is equivalent to 1 kgf/mm² 10 kgf/mm² 1 kgf/m² 10 kgf/m² 1 kgf/mm² 10 kgf/mm² 1 kgf/m² 10 kgf/m² ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Brinell Hardness Number (BHN) for talc is approximately in the range of 1-5 100-150 20-30 200-250 1-5 100-150 20-30 200-250 ANSWER DOWNLOAD EXAMIANS APP
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