Heat Transfer The main purpose of providing fins on heat transfer surface is to increase the Temperature gradient Mechanical strength of the equipment Heat transfer area Heat transfer co-efficient Temperature gradient Mechanical strength of the equipment Heat transfer area Heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam economy in case of a triple effect evaporator will be 1 Between 0 and 1 < 1 > 1 1 Between 0 and 1 < 1 > 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer rate per unit area is called heat flux thermal diffusivity heat transfer co-efficient thermal conductivity heat flux thermal diffusivity heat transfer co-efficient thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If Prandtl number is greater than the Schmidt number, then the thermal & concentration boundary layers are of equal thickness concentration boundary layer lies inside the thermal boundary layer none of the listed here thermal boundary layer lies inside the concentration boundary layer thermal & concentration boundary layers are of equal thickness concentration boundary layer lies inside the thermal boundary layer none of the listed here thermal boundary layer lies inside the concentration boundary layer ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is Finned tube heat exchanger with air inside and steam outside Shell and tube heat exchanger with air inside tubes and steam on shell side Finned tube heat exchanger with air outside and steam inside Shell and tube heat exchanger with air on shell side and steam inside tubes Finned tube heat exchanger with air inside and steam outside Shell and tube heat exchanger with air inside tubes and steam on shell side Finned tube heat exchanger with air outside and steam inside Shell and tube heat exchanger with air on shell side and steam inside tubes ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Baffle spacing Is not the same as baffle pitch Should be less than one fifth the diameter of the shell Should be less than the inside diameter of the shell None of these Is not the same as baffle pitch Should be less than one fifth the diameter of the shell Should be less than the inside diameter of the shell None of these ANSWER DOWNLOAD EXAMIANS APP
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