Chemical Engineering Basics In extrusion of metals, which of the following statement is true ? Speed of the extruded material is same as that of ram speed Relative motion between the billet surface and the container wall is always present Redundant work is a function of the die angle Hollow ram is used for indirect extrusion Speed of the extruded material is same as that of ram speed Relative motion between the billet surface and the container wall is always present Redundant work is a function of the die angle Hollow ram is used for indirect extrusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics __________ of hard alloy and tool steel is done to make it easily machinable. Normalising Tempering Case carburising Annealing Normalising Tempering Case carburising Annealing ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Out of the following, the dimensionless quantity is Density Specific weight Mach number Viscosity Density Specific weight Mach number Viscosity ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Circulation of liquid metal (i.e. molten sodium) in a liquid metal cooled nuclear reactor is done by a/an __________ pump. Electromagnetic Diaphragm Axial flow Reciprocating Electromagnetic Diaphragm Axial flow Reciprocating ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics During sensible cooling of air, its wet bulb temperature Increases but dew point remains constant Decreases but dew point remains constant Decreases & the dew point increases Increases & the dew point decreases Increases but dew point remains constant Decreases but dew point remains constant Decreases & the dew point increases Increases & the dew point decreases 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 ? 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 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 ANSWER DOWNLOAD EXAMIANS APP
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