Heat and Mass Transfer The amount of radiation mainly depends on Nature of body Type of surface of body All of these Temperature of body Nature of body Type of surface of body All of these Temperature of body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The natural convection air cooled condensers are used in Water coolers All of these Domestic refrigerators Room air conditioners Water coolers All of these Domestic refrigerators Room air conditioners ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Unit of thermal conductivity in S.I. units is J/m² sec W/m °K J/m °K sec Option (B) and (C) above J/m² sec W/m °K J/m °K sec Option (B) and (C) above ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Two plates spaced 150 mm apart are maintained at 1000°C and 70°C. The heat transfer will take place mainly by Radiation Convection Forced convection Free convection Radiation Convection Forced convection Free convection ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Sensible heat factor is given by (where S.H. = Sensible heat, and L.H. = Latent heat) S.H/(S.H + L.H) (L.H - S.H)/S.H S.H/(L.H - S.H) (S.H + L.H) /S.H S.H/(S.H + L.H) (L.H - S.H)/S.H S.H/(L.H - S.H) (S.H + L.H) /S.H ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Reynolds number (RN) is given by (where h = Film coefficient, l = Linear dimension, V = Velocity of fluid, k = Thermal conductivity, t = Temperature, ρ = Density of fluid, cp = Specific heat at constant pressure, and μ = Coefficient of absolute viscosity) RN = V²/t.cp RN = μ cp/k RN = ρ V l /μ RN = hl/k RN = V²/t.cp RN = μ cp/k RN = ρ V l /μ RN = hl/k ANSWER DOWNLOAD EXAMIANS APP
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