Heat and Mass Transfer Heat flows from one body to other when they have Different heat contents Different specific heat Different temperatures Different atomic structure Different heat contents Different specific heat Different temperatures Different atomic structure 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 None of these Emissive power Absorptive power Emissivity None of these Emissive power Absorptive power Emissivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Wien’s law states that the wave length corresponding to ________ is proportional to the absolute temperature. None of these Maximum energy Minimum energy Both (A) and (B) None of these Maximum energy Minimum energy Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Dalton's law of partial pressures, (where pb = Barometric pressure, pa = Partial pressure of dry air, and pv = Partial pressure of water vapour) Pb = pa × pv Pb = pa + pv Pb = pa - pv Pb = pa/pv Pb = pa × pv Pb = pa + pv Pb = pa - pv Pb = pa/pv ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The critical radius is the insulation radius at which the resistance to heat flow is Minimum Zero None of these Maximum Minimum Zero None of these Maximum ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Free convection flow depends on Coefficient of viscosity All of these Density Gravitational force Coefficient of viscosity All of these Density Gravitational force ANSWER DOWNLOAD EXAMIANS APP
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