Heat and Mass Transfer The value of the wavelength for maximum emissive power is given by Stefan's law Wien’s law Planck's law Fourier's law Stefan's law Wien’s law Planck's law Fourier's law ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In a heat exchanger with one fluid evaporating or condensing, the surface area required is least in Cross flow All of these Parallel flow Counter flow Cross flow All of these Parallel flow Counter flow ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A non-dimensional number generally associated with natural convection heat transfer is Weber number Prandtl number Grashoff number Nusselt number Weber number Prandtl number Grashoff number Nusselt number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The unit of Stefan Boltzmann constant is watt/cm2 °K⁴ watt/cm4 °K watt/cm3 °K watt2/cm °K⁴ watt/cm2 °K⁴ watt/cm4 °K watt/cm3 °K watt2/cm °K⁴ ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The most commonly used method for the design of duct size is the Equal friction method Dual or double method Static regains method Velocity reduction method Equal friction method Dual or double method Static regains method Velocity reduction method ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In free convection heat transfer transition from laminar to turbulent flow is governed by the critical value of the Reynold's number Reynold's number, Grashoff's number Prandtl number, Grashoff's number Grashoff's number Reynold's number Reynold's number, Grashoff's number Prandtl number, Grashoff's number Grashoff's number ANSWER DOWNLOAD EXAMIANS APP
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