Heat Transfer Which of the following is unimportant in forced convection ? Grashhoff number Reynolds number Prandtl number none of the listed here Grashhoff number Reynolds number Prandtl number none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat flux, as defined in heat flow is analogous to __________ in electricity flow. Voltage Resistance Current None of these Voltage Resistance Current None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the steam economy in case of a single effect evaporator system? 0.1 1 >1 < 1 0.1 1 >1 < 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For turbulent flow in a tube, the heat transfer co-efficient is obtained from the Dittus-Boelter correlation. If the tube diameter is halved and the flow rate is doubled, then the heat transfer co-efficient will change by a factor of 1.74 1 6.1 37 1.74 1 6.1 37 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Walls of a cubical oven are of thickness l, and they are made of material of thermal conductivity k. The temperature inside the oven is 100°C and the inside heat transfer co-efficient is 3k/l. If the wall temperature on the outside is held at 25°C, what is the inside wall temperature in degree centigrade? 48.25 35.5 43.75 81.25 48.25 35.5 43.75 81.25 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is the ratio of the temperature gradient at the wall to That across the entire pipe Heat flux Temperature difference None of these That across the entire pipe Heat flux Temperature difference None of these ANSWER DOWNLOAD EXAMIANS APP
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