Chemical Engineering Basics Maraging steels derive their strength from the following mechanism: A fine, highly dislocated and strong martensite Fine dispersions of alloy carbides in a ferrite matrix Fine dispersions of intermetallics of Fe, Ni, Ti etc Fine dispersions of Fe₃ C nucleated on dislocations in austenite A fine, highly dislocated and strong martensite Fine dispersions of alloy carbides in a ferrite matrix Fine dispersions of intermetallics of Fe, Ni, Ti etc Fine dispersions of Fe₃ C nucleated on dislocations in austenite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Materials having __________ lattice structure are usually the most ductile. None of these Face centred cubic (fcc) Body centred cubic (bcc) Hexagonal close packed (hcp) None of these Face centred cubic (fcc) Body centred cubic (bcc) Hexagonal close packed (hcp) 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. Reciprocating Diaphragm Axial flow Electromagnetic Reciprocating Diaphragm Axial flow Electromagnetic ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The property of material, by which a given amount of energy is absorbed by it, without plastic deformation is called Toughness Resilience Impact strength Ductility Toughness Resilience Impact strength Ductility ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following is not a characteristic observed in material failure by fatigue fracture ? Plastic deformation of material does not occur Initiation of crack from below the surface does not occur Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Initation of crack occurs on the surface of the machine part Plastic deformation of material does not occur Initiation of crack from below the surface does not occur Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Initation of crack occurs on the surface of the machine part ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following is a boiler accessory i.e., not a boiler mounting ? Feed water pump Blow off cock Feed check valve Stop valve Feed water pump Blow off cock Feed check valve Stop valve ANSWER DOWNLOAD EXAMIANS APP
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