Heat Transfer Baffles are provided in heat exchangers to increase the Heat transfer rate Heat transfer co-efficient Heat transfer area Fouling factor Heat transfer rate Heat transfer co-efficient Heat transfer area Fouling factor ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, floating head is used for Large temperature differentials High heat transfer co-efficient Less corrosion of tubes Low pressure drop Large temperature differentials High heat transfer co-efficient Less corrosion of tubes Low pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Three solid objects of the same material and of equal mass-a sphere, a cylinder (length = diameter) and a cube are at 500°C initially. These are dropped in a quenching bath containing a large volume of cooling oil each attaining the bath temperature eventually. The time required for 90% change in temperature is the smallest for Cylinder Cube Sphere Equal for all the three Cylinder Cube Sphere Equal for all the three ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of parallel flow heat exchanger, the lowest temperature theoretically attainable by the hot fluid is __________ the outlet temperature of the cold fluid. More than Either more or less than (depending upon the fluid) Less than Equal to More than Either more or less than (depending upon the fluid) Less than Equal to ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Stefan-Boltzman law applies to __________ body grey white black None of the listed here grey white black None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Analogy between mass and heat transfer is not applicable in case of Thermal or pressure mass diffusion Same velocity profile or equal eddy diffusivities Both B and C Viscous heating or chemical reaction Thermal or pressure mass diffusion Same velocity profile or equal eddy diffusivities Both B and C Viscous heating or chemical reaction ANSWER DOWNLOAD EXAMIANS APP
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