Heat Transfer In case of evaporators, liquid entrainment results primarily due to high heat transfer rate high vacuum in the evaporator foaming of the solution high heat transfer rate high heat transfer rate high vacuum in the evaporator foaming of the solution high heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Log mean temperature difference (LMTD) cannot be used, if there exists an unsteady state heat transfer co-efficient over the entire heat exchanger is not constant the heat capacity is not constant and there is a phase change. none of the listed here there exists an unsteady state heat transfer co-efficient over the entire heat exchanger is not constant the heat capacity is not constant and there is a phase change. none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An insulator should have Low thermal conductivity Less resistance to heat flow A porous structure High thermal conductivity Low thermal conductivity Less resistance to heat flow A porous structure High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steady state one dimensional heat flow by conduction as given by Fourier's low does not assume that There is no internal heat generation Material is anisotropic Constant temperature gradient exists Boundary surfaces are isothermal There is no internal heat generation Material is anisotropic Constant temperature gradient exists Boundary surfaces are isothermal ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of providing a 'catchall' in the vapor line of an evaporator is to Create vacuum Arrest the entrained liquid Vent the non-condensible gases Regulate the vapor flow Create vacuum Arrest the entrained liquid Vent the non-condensible gases Regulate the vapor flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a vertical tube evaporator, with increase in the liquor level, the __________ is increased. Both A and B Velocity of circulation Neither A and B Liquor-film co-efficient Both A and B Velocity of circulation Neither A and B Liquor-film co-efficient ANSWER DOWNLOAD EXAMIANS APP
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