Heat Transfer In case of a multipass shell and tube heat exchanger, providing a baffle on the shell side __________ the heat transfer rate. Does not affect May increase or decrease, depends on the type of baffle Increases Decreases Does not affect May increase or decrease, depends on the type of baffle Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer occurs by natural convection because change in temperature causes difference in Thermal conductivity Density Viscosity Heat capacity Thermal conductivity Density Viscosity Heat capacity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Unsteady state heat conduction occurs, when Three dimensional heat flow is concerned Temperature distribution is independent of time Temperature distribution is dependent on time Heat flows in one direction only Three dimensional heat flow is concerned Temperature distribution is independent of time Temperature distribution is dependent on time Heat flows in one direction only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place From one part of a body to the another part of the same body Between two bodies not in physical contact with each other Both B & C Between two bodies in physical contact with each other From one part of a body to the another part of the same body Between two bodies not in physical contact with each other Both B & C Between two bodies in physical contact with each other ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a perfectly transparent surface (like gases), the Reflectivity = 0 All of these Absorptivity = 0 Transmissivity = 1 Reflectivity = 0 All of these Absorptivity = 0 Transmissivity = 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The number of kg vaporised per kg of steam fed to the evaporator is defined as Economy Rate of vaporisation Rate of evaporation Capacity Economy Rate of vaporisation Rate of evaporation Capacity ANSWER DOWNLOAD EXAMIANS APP
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