Heat Transfer If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface tempeature follows __________ law. Linear Logarithmic Parabolic Hyperbolic Linear Logarithmic Parabolic Hyperbolic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Grashoff number is defined as the ratio of the 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 inertial to viscous forces. buoyancy to viscous forces ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a heat exchanger with steam outside the tubes, a liquid gets heated to 45°C, when its flow velocity in the tubes is 2 m/s. If the flow velocity is reduced to 1 m/s, other things remaining the same, the temperature of the exit liquid will be Less than 45°C Initially decreases and remains constant thereafter More than 45°C Equal to 45°C Less than 45°C Initially decreases and remains constant thereafter More than 45°C Equal to 45°C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Grashoff number, which is defined as g . β(Ts - T∞) ρ². L³/μ², is proportional to the ratio of buoyancy force to __________ force. Viscous Inertial None of these Elastic Viscous Inertial None of these Elastic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer LMTD for counterflow and prallel flow heat exchanger will be the same, when the 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 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 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A BTU/hr.ft.2 °F is equal to 1 kcal/hr. m².°K None of these 4.88 kcal/hr. m.2°C 1 kcal/hr. m²°C 1 kcal/hr. m².°K None of these 4.88 kcal/hr. m.2°C 1 kcal/hr. m²°C ANSWER DOWNLOAD EXAMIANS APP
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