Chemical Engineering Basics In extrusion of metals, which of the following statement is true ? Redundant work is a function of the die angle Hollow ram is used for indirect extrusion Relative motion between the billet surface and the container wall is always present Speed of the extruded material is same as that of ram speed Redundant work is a function of the die angle Hollow ram is used for indirect extrusion Relative motion between the billet surface and the container wall is always present Speed of the extruded material is same as that of ram speed ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Powder metallurgy is used to produce Components of such alloys whose constituents do not form alloys readily Porosity free components High precision components with complex cavities and sharp features Components of large size Components of such alloys whose constituents do not form alloys readily Porosity free components High precision components with complex cavities and sharp features Components of large size ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The stress at which a metal fails by fatigue lies In the elastic range In the plastic range None of these Near the fracture point of the stress-strain curve In the elastic range In the plastic range None of these Near the fracture point of the stress-strain curve ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics __________ is the hardest oxide and is hence used where high wear resistance at high temperature is required. Beryllia Magnesia Zirconia Alumina Beryllia Magnesia Zirconia Alumina ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Materials having __________ lattice structure are usually the most ductile. None of these Face centred cubic (fcc) Hexagonal close packed (hcp) Body centred cubic (bcc) None of these Face centred cubic (fcc) Hexagonal close packed (hcp) Body centred cubic (bcc) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following metals is the most prone to work hardening? Aluminium Copper Lead Brass Aluminium Copper Lead Brass ANSWER DOWNLOAD EXAMIANS APP
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