Heat and Mass Transfer Heat transfer takes place as per First law of thermodynamic Second law of the thermodynamics Zeroth law of thermodynamics Kirchoff's law First law of thermodynamic Second law of the thermodynamics Zeroth law of thermodynamics Kirchoff's law ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A cube at high temperature is immersed in a constant temperature bath. It loses heat from its top, bottom and side surfaces with heat transfer coefficients of h₁, h₂ and h₃ respectively. The average heat transfer coefficient for the cube is (h₁.h₂.h₃)1/3 None of these h₁ + h₂ + h₃ 1/h₁ + 1/h₂ + 1/h₃ (h₁.h₂.h₃)1/3 None of these h₁ + h₂ + h₃ 1/h₁ + 1/h₂ + 1/h₃ ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Reynolds number is the ratio of Energy transferred by convection to that by conduction None of these Kinematic viscosity to thermal diffusivity Inertia force to viscous force Energy transferred by convection to that by conduction None of these Kinematic viscosity to thermal diffusivity Inertia force to viscous force ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following is the case of heat transfer by radiation? Heat received by a person from fireplace Heating of building Cooling of parts in furnace Blast furnace Heat received by a person from fireplace Heating of building Cooling of parts in furnace Blast furnace ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In heat transfer, conductance equals conductivity (kcal/hr/sq.m/°C/cm) divided by Sq. m (area) °C (temperature) Hr (time) K.cal (heat) Sq. m (area) °C (temperature) Hr (time) K.cal (heat) ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Total heat is the heat required to Convert water into steam and superheat it Increase the temperature of a liquid or vapour Change liquid into vapour Change vapour into liquid Convert water into steam and superheat it Increase the temperature of a liquid or vapour Change liquid into vapour Change vapour into liquid ANSWER DOWNLOAD EXAMIANS APP
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