Heat Transfer The Grashoff number is defined as the ratio of the inertial to viscous forces. buoyancy to viscous forces buoyancy to inertial forces buoyancy to surface tension forces inertial to viscous forces. buoyancy to viscous forces buoyancy to inertial forces buoyancy to surface tension forces ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid when Grashhoff number is very important none of the listed here for fluids in tubulent flow for fluids in laminar flow when Grashhoff number is very important none of the listed here for fluids in tubulent flow for fluids in laminar flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The actual temperature drop across the heating surface of an evaporator depends on the Solution being evaporated Pressure difference between the steam chest and the vapor space above the boiling liquid Liquid depth over the heating surface All of these Solution being evaporated Pressure difference between the steam chest and the vapor space above the boiling liquid Liquid depth over the heating surface All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiator of an automobile engine is a __________ type of heat exchanger. Counter-current Direct contact Cross-current Co-current Counter-current Direct contact Cross-current Co-current ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The outlet temperature of cooling water in a heat exchanger is generally not allowed to exceed above 50°C in industrial practice mainly to avoid Its evaporation loss Decrease in heat exchanger efficiency Uneconomic LMTD Excessive corrosion Its evaporation loss Decrease in heat exchanger efficiency Uneconomic LMTD Excessive corrosion ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer LMTD for counterflow and prallel flow heat exchanger will be the same, when the Outlent temperature of both the hot and cold fluid are same Cold fluid is heated to a certain temperature by condensing steam (isothermal fluid) Outlet temperature of hot fluid is less than the outlet temperature of the cold fluid None of these Outlent temperature of both the hot and cold fluid are same Cold fluid is heated to a certain temperature by condensing steam (isothermal fluid) Outlet temperature of hot fluid is less than the outlet temperature of the cold fluid None of these ANSWER DOWNLOAD EXAMIANS APP
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