Heat Transfer For flow over a flat plate, the ratio of thermal boundary layer thickness, 'xt' and hydrodynamic boundary layer thickness 'x' is equal to (where, NPr = Prandtl number) NPr-1 NPr-1/3 NPr1/3 NPr NPr-1 NPr-1/3 NPr1/3 NPr ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The equivalent diameter for pressure drop is __________ that for heat transfer None of the listed here greater than smaller than equal to None of the listed here greater than smaller than equal to ANSWER DOWNLOAD EXAMIANS APP
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 Increases May increase or decrease, depends on the type of baffle Decreases Does not affect Increases May increase or decrease, depends on the type of baffle Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A perfect black body is a perfect __________ of radiation absorber none of the listed here emitter Both emitter & absorber absorber none of the listed here emitter Both emitter & absorber ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m². The flux, when the element temperature is increased to 1000°C for the same furnace temperature is 16.5 kW/m² 12.0 kW/m² 11.2 kW/m² 14.6 kW/m² 16.5 kW/m² 12.0 kW/m² 11.2 kW/m² 14.6 kW/m² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiation heat transfer rates does not depend upon the type of absorbing surface none of the listed here surface area and temperature of the heat source distance between the heat source and the object receiving the heat type of absorbing surface none of the listed here surface area and temperature of the heat source distance between the heat source and the object receiving the heat ANSWER DOWNLOAD EXAMIANS APP
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