Chemical Engineering Basics __________ of air does not increase with increase in temperature. Viscosity Thermal conductivity Thermal diffusivity Density Viscosity Thermal conductivity Thermal diffusivity Density ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics In radiative heat transfer, a grey surface is the one, which has Equal brightness in all directions Emissivity independent of wavelength Zero reflectivity Grey appearance to the eye Equal brightness in all directions Emissivity independent of wavelength Zero reflectivity Grey appearance to the eye 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 & tungsten Cobalt, chromium & nickel Cobalt, zirconium & molybdenum Molybdenun, tungsten & chromium Cobalt, chromium & tungsten Cobalt, chromium & nickel Cobalt, zirconium & molybdenum Molybdenun, tungsten & chromium ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Frost formation on the evaporator tubes in the domestic refrigerators Decreased compressor power Can be prevented by proper design Causes heat loss due to poor heat transfer Is immaterial Decreased compressor power Can be prevented by proper design Causes heat loss due to poor heat transfer Is immaterial ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Oxygen cylinders used for autogenous (cutting/welding) purposes are Heat treated before use Seamless & made of steel Welded steel cylinders Made by sand casting Heat treated before use Seamless & made of steel Welded steel cylinders Made by sand casting ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Factor of safety is the ratio of the __________ stress to the working stress. Bearing Compressive Tensile Yield Bearing Compressive Tensile Yield ANSWER DOWNLOAD EXAMIANS APP
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