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 2CaO . SiO₂ 3CaO . Al2O₃ 3CaO . SiO₂ 5CaO . 3 Al2O₃ 2CaO . SiO₂ 3CaO . Al2O₃ 3CaO . SiO₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The approximate height of a blast furnace having a useful volume of 2000 m³ is about __________ metres 55 25 35 75 55 25 35 75 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C. 1800 2400 2000 3000 1800 2400 2000 3000 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 The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void. Equal to Greater than Less than Either A, B or C; depends on the size of atom Equal to Greater than Less than Either A, B or C; depends on the size of atom ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics __________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently. Collar Bell and Spigot Flanged Expansion Collar Bell and Spigot Flanged Expansion ANSWER DOWNLOAD EXAMIANS APP
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