Chemical Engineering Basics Which of the following is not a characteristic observed in material failure by fatigue fracture ? Initiation of crack from below the surface does not occur Plastic deformation of material does not occur Initation of crack occurs on the surface of the machine part Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Initiation of crack from below the surface does not occur Plastic deformation of material does not occur Initation of crack occurs on the surface of the machine part Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Pick out the wrong statement. If the net positive suction head (NPSH) requirement of a pump is not satisfied, then It will not develop sufficient head to raise water Its efficiency will not be affected It will be cavitated It will deliver low discharge of liquid It will not develop sufficient head to raise water Its efficiency will not be affected It will be cavitated It will deliver low discharge of liquid ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The velocity of sound in air is independent of changes in its Pressure Temperature Humidity None of these Pressure Temperature Humidity None of these 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 90000 J 60000 J 240000 J 30000 J 90000 J 60000 J 240000 J 30000 J ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as Gr0.33, Gr0.25 Gr, Gr0.25 Gr0.25, Gr Gr0.25, Gr0.33 Gr0.33, Gr0.25 Gr, Gr0.25 Gr0.25, Gr Gr0.25, Gr0.33 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Materials having resistivity ranging from 1 to 100 ohm. cm is termed as Semi-conductor Insulator None of these Conductor Semi-conductor Insulator None of these Conductor ANSWER DOWNLOAD EXAMIANS APP
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