Heat Transfer Thermal diffusivity of a material Is the ratio of thermal conductivity to thermal capacity All of these Is defined as K/ρ . Cp Has the unit m² /sec Is the ratio of thermal conductivity to thermal capacity All of these Is defined as K/ρ . Cp Has the unit m² /sec ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat transfer co-efficient in film type condensation is __________ that for dropwise condensation. Half Greater than Is same as Lower than Half Greater than Is same as Lower than ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Shell side pressure drop in a shell and tube heat exchanger does not depend upon the Baffle spacing & shell diameter Viscosity, density & mass velocity of shell side fluid None of these Tube diameter & pitch Baffle spacing & shell diameter Viscosity, density & mass velocity of shell side fluid None of these Tube diameter & pitch ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fourier's law of heat conduction applies to __________ surfaces. Isothermal Neither A and B Non-isothermal Both A and B Isothermal Neither A and B Non-isothermal Both A and B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A tank painted with which of the following coloured paints, would heat up maximum by radiation from sun? Grey paint Black paint Yellow paint White paint Grey paint Black paint Yellow paint White paint ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer co-efficient (h1) for liquids increases with Decreasing Reynolds number Decreasing temperature Increasing temperature None of these Decreasing Reynolds number Decreasing temperature Increasing temperature None of these ANSWER DOWNLOAD EXAMIANS APP
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