Heat and Mass Transfer Thermal conductivity of non-metallic amorphous solids with decrease in temperature May increase or decrease depending on temperature Remain constant Decreases Increases May increase or decrease depending on temperature Remain constant Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The unit of Stefan Boltzmann constant is watt/cm2 °K⁴ watt2/cm °K⁴ watt/cm4 °K watt/cm3 °K watt/cm2 °K⁴ watt2/cm °K⁴ watt/cm4 °K watt/cm3 °K ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Total heat is the heat required to Change liquid into vapour Convert water into steam and superheat it Change vapour into liquid Increase the temperature of a liquid or vapour Change liquid into vapour Convert water into steam and superheat it Change vapour into liquid Increase the temperature of a liquid or vapour ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The product of Reynolds number and Prandtl number is known as Biot number Peclet number Stanton number Grashoff number Biot number Peclet number Stanton number Grashoff number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Emissivity of a white polished body in comparison to a black body is Higher Lower Same Depends upon the shape of body Higher Lower Same Depends upon the shape of body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer If the energy radiated per second per sq. cm. of the surface for wave lengths lying between λ, and λ + dλ is represented by (eλ.dλ), then eλ is called Emissivity Absorptive power Emissive power None of these Emissivity Absorptive power Emissive power None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS