Heat Transfer Heat transfer occurs by natural convection because change in temperature causes difference in Viscosity Density Thermal conductivity Heat capacity Viscosity Density Thermal conductivity Heat capacity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The characteristic dimensionless groups for heat transfer to a fluid flowing through a pipe in laminar flow are Re.Gz Nu, Pr, Re Nu, Pr Nu, Gz Re.Gz Nu, Pr, Re Nu, Pr Nu, Gz ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the steam economy in case of a single effect evaporator system? 1 < 1 0.1 >1 1 < 1 0.1 >1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides Lower capacity Lower economy Both A & B Higher economy Lower capacity Lower economy Both A & B Higher economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a heat exchanger with steam outside the tubes, a liquid gets heated to 45°C, when its flow velocity in the tubes is 2 m/s. If the flow velocity is reduced to 1 m/s, other things remaining the same, the temperature of the exit liquid will be Equal to 45°C Initially decreases and remains constant thereafter Less than 45°C More than 45°C Equal to 45°C Initially decreases and remains constant thereafter Less than 45°C More than 45°C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The absorptivity of a body is equal to its emissivity under thermal equilibrium for circular bodies at a particular temperature none of the listed here under thermal equilibrium for circular bodies at a particular temperature none of the listed here ANSWER DOWNLOAD EXAMIANS APP
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