Heat Transfer In a single evaporator system, the steam economy __________ by creating vacuum in the evaporator. Decreases May increase or decrease, depends on the vacuum Remains constant Increases Decreases May increase or decrease, depends on the vacuum Remains constant Increases 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? 35.5 81.25 48.25 43.75 35.5 81.25 48.25 43.75 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam economy in case of a triple effect evaporator will be Between 0 and 1 > 1 < 1 1 Between 0 and 1 > 1 < 1 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place Both B & C Between two bodies in physical contact with each other From one part of a body to the another part of the same body Between two bodies not in physical contact with each other Both B & C Between two bodies in physical contact with each other From one part of a body to the another part of the same body Between two bodies not in physical contact with each other ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Value of Nusselt number [Nu = (hD/k)] for the heat transfer by conduction from a droplet or a spherical particle to a surrounding stagnant film is 100 0.5 2 10 100 0.5 2 10 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Convective heat transfer co-efficient in case of fluid flowing in tubes is not affected by the tube length/diameter ratio, if the flow is in the __________ zone. highly turbulent None of the listed here transition laminar highly turbulent None of the listed here transition laminar ANSWER DOWNLOAD EXAMIANS APP
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