Chemical Engineering Basics Which of the following is not a characteristic observed in material failure by fatigue fracture ? Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Plastic deformation of material does not occur Initiation of crack from below the surface 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 Plastic deformation of material does not occur Initiation of crack from below the surface does not occur Initation of crack occurs on the surface of the machine part 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 Gr0.25, Gr Gr, Gr0.25 Gr0.25, Gr0.33 Gr0.33, Gr0.25 Gr0.25, Gr Gr, Gr0.25 Gr0.25, Gr0.33 Gr0.33, Gr0.25 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following phenomenon/ phenomena is/are diffusion controlled ? Dislocation climb Cross-slip Twinning Recrystallisation Dislocation climb Cross-slip Twinning Recrystallisation ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics In radiative heat transfer, a grey surface is the one, which has Grey appearance to the eye Emissivity independent of wavelength Zero reflectivity Equal brightness in all directions Grey appearance to the eye Emissivity independent of wavelength Zero reflectivity Equal brightness in all directions ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Capacity & power requirement for an air compressor working at high altitude compared to sea-level will be Less More Either more or less; depends on the climatic conditions Same Less More Either more or less; depends on the climatic conditions Same ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are Cobalt, chromium & nickel Cobalt, chromium & tungsten Molybdenun, tungsten & chromium Cobalt, zirconium & molybdenum Cobalt, chromium & nickel Cobalt, chromium & tungsten Molybdenun, tungsten & chromium Cobalt, zirconium & molybdenum ANSWER DOWNLOAD EXAMIANS APP
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