Heat and Mass Transfer The transfer of heat by molecular collision is smallest in Solids Liquids Gases None of these Solids Liquids Gases None of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer If the temperature of a solid surface changes form 27°C to 627°C, then its emissive power changes in the ratio of 3 81 270 9 3 81 270 9 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of water _________ with rise in temperature. May increase or decrease depending upon temperature Increases Remain same Decreases May increase or decrease depending upon temperature Increases Remain same Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The amount of radiation mainly depends upon the Temperature of the body Nature of the body Type of surface of the body All of these Temperature of the body Nature of the body Type of surface of the body All of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The rate of heat flow through a body is Q = [kA (T₁ - T₂)]/x. The term x/kA is known as Thermal coefficient None of these Thermal resistance Thermal conductivity Thermal coefficient None of these Thermal resistance Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fouling factor is used When a liquid exchanges heat with a gas In heat exchanger design as a safety factor None of these In case of Newtonian fluids When a liquid exchanges heat with a gas In heat exchanger design as a safety factor None of these In case of Newtonian fluids ANSWER DOWNLOAD EXAMIANS APP
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