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 5CaO . 3 Al2O₃ 3CaO . Al2O₃ 2CaO . SiO₂ 3CaO . SiO₂ 5CaO . 3 Al2O₃ 3CaO . Al2O₃ 2CaO . SiO₂ 3CaO . SiO₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Chlorine acts as a bleaching agent only in the presence of Dry air Moisture Pure oxygen Sunlight Dry air Moisture Pure oxygen Sunlight ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Compression ratio of an I.C. engine is the ratio of the None of these Clearance volume to the volume swept by piston per stroke Pressure after compression to that before compression Volume of air in cylinder before compression to that after compression None of these Clearance volume to the volume swept by piston per stroke Pressure after compression to that before compression Volume of air in cylinder before compression to that after compression ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which one is neutral in character ? N₂O₄ N₂O N₂O₅ N₂O₃ N₂O₄ N₂O N₂O₅ N₂O₃ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure. Face centred cubic (fcc) Simple cubic Body centred cubic (bcc) Hexagonal close, packed (hcp) Face centred cubic (fcc) Simple cubic Body centred cubic (bcc) Hexagonal close, packed (hcp) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action. Integral Proportional Derivative None of these Integral Proportional Derivative None of these ANSWER DOWNLOAD EXAMIANS APP
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