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 3CaO . Al2O₃ 5CaO . 3 Al2O₃ 2CaO . SiO₂ 3CaO . SiO₂ 3CaO . Al2O₃ 5CaO . 3 Al2O₃ 2CaO . SiO₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following phenomenon/ phenomena is/are diffusion controlled ? Dislocation climb Twinning Cross-slip Recrystallisation Dislocation climb Twinning Cross-slip Recrystallisation ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics On decreasing the grain size of a polycrys-talline material, the property most likely to deteriorate is Fatigue Toughness Creep Tensile strength Fatigue Toughness Creep Tensile strength ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Presence of small quantity of sulphur in low carbon steel improves its Hardenarality Formability Weldability Machinability Hardenarality Formability Weldability Machinability ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics For the same heat input & compression ratio, efficiency of Otto cycle is higher than that of diesel cycle, because in Otto cycle. Heat rejection is lower Maximum temperature is higher Expansion & compression are isentropic Combustion is at constant volume Heat rejection is lower Maximum temperature is higher Expansion & compression are isentropic Combustion is at constant volume ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Lead is added to 60:40 brass primarily to improve Fluidity Strength Corrosion resistance Machinability Fluidity Strength Corrosion resistance Machinability ANSWER DOWNLOAD EXAMIANS APP
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