Heat and Mass Transfer Metals are good conductors of heat because They have high density Their atoms are relatively far apart They contain free electrons Their atoms collide frequently They have high density Their atoms are relatively far apart They contain free electrons Their atoms collide frequently ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of solid metals with rise in temperature normally Decreases Remain constant May increase or decrease depending on temperature Increases Decreases Remain constant May increase or decrease depending on temperature Increases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat conducted through per unit area and unit thick face per unit time when temperature difference between opposite faces is unity, is called Thermal conductivity Thermal resistance Temperature gradient Thermal coefficient Thermal conductivity Thermal resistance Temperature gradient Thermal coefficient ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The transfer of heat by molecular collision is known as Conduction None of these Convection Radiation Conduction None of these Convection Radiation ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Unit of thermal conductivity in S.I. units is J/m² sec Option (B) and (C) above J/m °K sec W/m °K J/m² sec Option (B) and (C) above J/m °K sec W/m °K ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In free convection heat transfer, Nusselt number is function of Grashoff number, Prandtl number and Reynold number Grashoff number and Prandtl number Grashoff number and Reynold number Prandtl number and Reynold number Grashoff number, Prandtl number and Reynold number Grashoff number and Prandtl number Grashoff number and Reynold number Prandtl number and Reynold number ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS