Heat and Mass Transfer Total heat is the heat required to Convert water into steam and superheat it Change liquid into vapour Increase the temperature of a liquid or vapour Change vapour into liquid Convert water into steam and superheat it Change liquid into vapour Increase the temperature of a liquid or vapour Change vapour into liquid ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles due to difference of density caused by temperature of the particle is known as Forced convection Radiation Free convection Conduction Forced convection Radiation Free convection Conduction ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A non-dimensional number generally associated with natural convection heat transfer is Nusselt number Weber number Prandtl number Grashoff number Nusselt number Weber number Prandtl number Grashoff number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The natural convection air cooled condensers are used in Room air conditioners All of these Water coolers Domestic refrigerators Room air conditioners All of these Water coolers Domestic refrigerators ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Absorptivity of a body will be equal to its emissivity At critical temperature At all temperatures When system is under thermal equilibrium At one particular temperature At critical temperature At all temperatures When system is under thermal equilibrium At one particular temperature 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 Emissive power Emissivity None of these Absorptive power Emissive power Emissivity None of these Absorptive power ANSWER DOWNLOAD EXAMIANS APP
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