Heat Transfer At what value of Prandtl number, conduction is negligible in the turbulent core of a fluid flowing through a heated pipe? < 0.5 < 0.1 > 0.6 0.5 < 0.5 < 0.1 > 0.6 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Correction is applied to LMTD for __________ flow. Cross Parallel Counter None of these Cross Parallel Counter None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer efficiency leading of energy conservation in a heat exchanger can be achieved by Keeping the heat transfer surface clean Increasing the tube length None of these Enhancing the fluid pumping rate Keeping the heat transfer surface clean Increasing the tube length None of these Enhancing the fluid pumping rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is the ratio of the Temperature difference to the temperature gradient at the wall None of these Temperature gradient of the wall to that across the entire pipe Heat flux at the wall to that across the entire pipe Temperature difference to the temperature gradient at the wall None of these Temperature gradient of the wall to that across the entire pipe Heat flux at the wall to that across the entire pipe ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Sieder-Tate correlation for heat transfer in turbulent flow in pipe gives Nu α Re0.8, where, Nu is the Nusselt number and Re is the Reynolds number for the flow. Assuming that this relation is valid, the heat transfer co-efficient varies with the pipe diameter (D) as (D)1.8 (D)0.2 (D)-1.8 (D)-0.2 (D)1.8 (D)0.2 (D)-1.8 (D)-0.2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Joule's experiment, an insulated container contains 20 kg of water initially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated 500 times. The acceleration due to gravity is 9.8 ms⁻². Neglecting the heat capacity of agitator, the temperature of water (in °C) is 25 26.8 40.5 34.4 25 26.8 40.5 34.4 ANSWER DOWNLOAD EXAMIANS APP
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