Heat and Mass Transfer Fouling factor is used When a liquid exchanges heat with a gas In heat exchanger design as a safety factor In case of Newtonian fluids None of these When a liquid exchanges heat with a gas In heat exchanger design as a safety factor In case of Newtonian fluids None of these 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 natural convection air cooled condensers are used in All of these Domestic refrigerators Water coolers Room air conditioners All of these Domestic refrigerators Water coolers Room air conditioners ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The most commonly used method for the design of duct size is the Velocity reduction method Dual or double method Equal friction method Static regains method Velocity reduction method Dual or double method Equal friction method Static regains method ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal diffusivity is a Dimensionless parameter Physical property of a substance All of these Function of temperature Dimensionless parameter Physical property of a substance All of these Function of temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Film coefficient is defined as Inside diameter of tube Thermal conductivity Equivalent thickness of film Specific heat × Viscosity Equivalent thickness of film Film coefficient × Inside diameter Thermal conductivity Thermal conductivity Molecular diffusivity of momentum Thermal diffusivity Thermal conductivity Equivalent thickness of film Specific heat × Viscosity Equivalent thickness of film Film coefficient × Inside diameter Thermal conductivity Thermal conductivity Molecular diffusivity of momentum Thermal diffusivity ANSWER DOWNLOAD EXAMIANS APP
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