Heat Transfer For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it Decreases the outlet temperature of cooling medium Increases the overall heat transfer coefficient Decreases the pressure drop None of these Decreases the outlet temperature of cooling medium Increases the overall heat transfer coefficient Decreases the pressure drop None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal diffusivity of a material Is defined as K/ρ . Cp Is the ratio of thermal conductivity to thermal capacity All of these Has the unit m² /sec Is defined as K/ρ . Cp Is the ratio of thermal conductivity to thermal capacity All of these Has the unit m² /sec ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is directly concerned with the heat transfer? Euler number Sherwood number Grashoff number Strouhal number Euler number Sherwood number Grashoff number Strouhal number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which area is used in case of heat flow by conduction through a cylinder ? None of the listed here Geometric mean area Arithmetic mean area Logarithmic mean area None of the listed here Geometric mean area Arithmetic mean area Logarithmic mean area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat sensitive materials can be concentrated in an evaporator employing None of these High residence time High pressure Vacuum None of these High residence time High pressure Vacuum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is the most controlling factor for the rate of bubble detachment from the hot solid surface? Hot surface temperature Interfacial tension Liquid density Liquid viscosity Hot surface temperature Interfacial tension Liquid density Liquid viscosity ANSWER DOWNLOAD EXAMIANS APP
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