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 2CaO . SiO₂ 5CaO . 3 Al2O₃ 3CaO . SiO₂ 3CaO . Al2O₃ 2CaO . SiO₂ 5CaO . 3 Al2O₃ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics A compact estimate about the amount of materials handling between various work stations is obtained from the Bin chart String diagram Travel chart Gantt chart Bin chart String diagram Travel chart Gantt chart ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Friction factor for fluid flow in pipe does not depend upon the Fluid density & viscosity Pipe roughness Mass flow rate of fluid Pipe length Fluid density & viscosity Pipe roughness Mass flow rate of fluid Pipe length ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics What is the effect on the performance of the economiser in the thermal power plant boiler, if the feed water temperature is very low due to preheaters being out for repairs or starving of steam supply ? It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Economiser tube life increases due to handling of low temperature water Scale formation rate on economiser tubes increases Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Economiser tube life increases due to handling of low temperature water Scale formation rate on economiser tubes increases Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Presence of small quantity of sulphur in low carbon steel improves its Weldability Machinability Formability Hardenarality Weldability Machinability Formability Hardenarality ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Free oxygen is removed from boiler feed water, because it Causes explosion None of these Reduces heat transfer co-efficient Is corrosive Causes explosion None of these Reduces heat transfer co-efficient Is corrosive ANSWER DOWNLOAD EXAMIANS APP
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