Heat Transfer Analogy between mass and heat transfer is not applicable in case of Same velocity profile or equal eddy diffusivities Thermal or pressure mass diffusion Viscous heating or chemical reaction Both B and C Same velocity profile or equal eddy diffusivities Thermal or pressure mass diffusion Viscous heating or chemical reaction Both B and C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The thermal radiation emitted by a body is proportional to Tn, where T is its absolute temperature. The value of 'n' is exactly 4 for Polished bodies only All bodies Black painted bodies only A black body Polished bodies only All bodies Black painted bodies only A black body ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A dephlegmator is a Total condenser Partial condenser Vacuum evaporator Double pipe heat exchanger Total condenser Partial condenser Vacuum evaporator Double pipe heat exchanger ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A tank painted with which of the following coloured paints, would heat up maximum by radiation from sun? Black paint Yellow paint Grey paint White paint Black paint Yellow paint Grey paint White paint ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Stefen's block body radiation law can also be derived from __________ law. Planck's Kirchoffs None of these Fourier's Planck's Kirchoffs None of these Fourier's ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Increasing the liquor level in the evaporator results in the increase in liquor film co-efficient decreased capacity decreased effect of hydrostatic head increased true temperature drop increase in liquor film co-efficient decreased capacity decreased effect of hydrostatic head increased true temperature drop ANSWER DOWNLOAD EXAMIANS APP