Chemical Engineering Basics In radiative heat transfer, a grey surface is the one, which has Emissivity independent of wavelength Equal brightness in all directions Zero reflectivity Grey appearance to the eye Emissivity independent of wavelength Equal brightness in all directions Zero reflectivity Grey appearance to the eye ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics In age-hardenable alloys, maximum ductility is obtained After overageing After optimum ageing Immediately after solution treatment and subsequent quenching In as cast state After overageing After optimum ageing Immediately after solution treatment and subsequent quenching In as cast state ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity. 100 50 None of these 100 50 None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Brinell Hardness Number (BHN) for talc is approximately in the range of 200-250 100-150 20-30 1-5 200-250 100-150 20-30 1-5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is Full annealing Patenting None of these Bright annealing Full annealing Patenting None of these Bright annealing ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by __________ will not increase. Convection Radiation Nucleate boiling Conduction Convection Radiation Nucleate boiling Conduction ANSWER DOWNLOAD EXAMIANS APP
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