Heat Transfer In a shell and tube type heat exchanger, the floating tube bundle heat arrangement is used Because of its low cost In low range of temperature differences In high range of temperature differences To prevent corrosion of the tube bundles Because of its low cost In low range of temperature differences In high range of temperature differences To prevent corrosion of the tube bundles ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The thermal boundary layer at NPr > 1 Is thinner than hydrodynamic boundary layer Is thicker than hydrodynamic boundary layer And the hydrodynamic boundary layer are identical Disappears Is thinner than hydrodynamic boundary layer Is thicker than hydrodynamic boundary layer And the hydrodynamic boundary layer are identical Disappears ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the absorptivity of a black body? 0.95 1 0.78 0.95 1 0.78 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation occurs on __________ surfaces clean and dirt free smooth clean contaminated cooling polished clean and dirt free smooth clean contaminated cooling polished ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Viscous & heat sensitive liquids are concentrated in __________ evaporators. Agitated film None of these Open pan Long tube Agitated film None of these Open pan Long tube ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, the hydrodynamic and thermal boundary layers are identical? 1 80 1.5 0.5 1 80 1.5 0.5 ANSWER DOWNLOAD EXAMIANS APP