Chemical Engineering Basics Maraging steels derive their strength from the following mechanism: A fine, highly dislocated and strong martensite Fine dispersions of Fe₃ C nucleated on dislocations in austenite Fine dispersions of intermetallics of Fe, Ni, Ti etc Fine dispersions of alloy carbides in a ferrite matrix A fine, highly dislocated and strong martensite Fine dispersions of Fe₃ C nucleated on dislocations in austenite Fine dispersions of intermetallics of Fe, Ni, Ti etc Fine dispersions of alloy carbides in a ferrite matrix ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Unit of viscosity in CGS system is Gm .cm⁻¹ sec⁻¹ Gm . cm² . sec⁻² Gm .cm⁻², sec⁻¹ Gm . cm . sec⁻¹ Gm .cm⁻¹ sec⁻¹ Gm . cm² . sec⁻² Gm .cm⁻², sec⁻¹ Gm . cm . sec⁻¹ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Boiler draught of 10 mm water column is equivalent to 10 kgf/mm² 10 kgf/m² 1 kgf/mm² 1 kgf/m² 10 kgf/mm² 10 kgf/m² 1 kgf/mm² 1 kgf/m² ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively Increases & decreases Increases & increases Decreases & increases Decreases & decreases Increases & decreases Increases & increases Decreases & increases Decreases & decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics On increasing the yield strength of a steel from 450 to 650 MPa, its __________ will increase. Modulus of resilience Modulus of toughness Ultimate tensile strength (UTS) Percent elongation Modulus of resilience Modulus of toughness Ultimate tensile strength (UTS) Percent elongation ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics At the point of boundary layer separation in fluid flow, the Velocity gradient is flat Shear stress is zero Density variation is maximum Shear stress is maximum Velocity gradient is flat Shear stress is zero Density variation is maximum Shear stress is maximum ANSWER DOWNLOAD EXAMIANS APP
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