Chemical Engineering Basics Maraging steels derive their strength from the following mechanism: Fine dispersions of Fe₃ C nucleated on dislocations in austenite Fine dispersions of intermetallics of Fe, Ni, Ti etc A fine, highly dislocated and strong martensite Fine dispersions of alloy carbides in a ferrite matrix Fine dispersions of Fe₃ C nucleated on dislocations in austenite Fine dispersions of intermetallics of Fe, Ni, Ti etc A fine, highly dislocated and strong martensite Fine dispersions of alloy carbides in a ferrite matrix ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the Velocity of the fluid Diameter of the pipe Length of the pipe Density of the fluid Velocity of the fluid Diameter of the pipe Length of the pipe Density of the fluid ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system Is as light as possible Consumer minimum horse power Has very high C.O.P Employs minimum quantity of refrigerant Is as light as possible Consumer minimum horse power Has very high C.O.P Employs minimum quantity of refrigerant ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Fatigue resistance of a material is measured by the Young's modulus Ultimate tensile strength Endurance limit Elastic limit Young's modulus Ultimate tensile strength Endurance limit Elastic limit ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics For the irreversible reaction, Ca+ 2C = Ca C₂ , Δ H°298 = - 60000 J . mole⁻¹ . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be 240000 J 30000 J 60000 J 90000 J 240000 J 30000 J 60000 J 90000 J ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following welding processes employs the highest welding temperature ? Arc welding Resistance welding Gas welding Thermit welding Arc welding Resistance welding Gas welding Thermit welding ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS