Heat Transfer The ratio of momentum diffusivity to thermal diffusivity is the __________ number. Nusselt Grashoff Stanton Prandtl Nusselt Grashoff Stanton Prandtl ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, The temperature drop is inversely proportional to the resistance across which the drop occurs There is no relationship between temperature drop and resistance The temperature drops in the two fluids and the wall are proportional to individual resistances The relationship is not generalised The temperature drop is inversely proportional to the resistance across which the drop occurs There is no relationship between temperature drop and resistance The temperature drops in the two fluids and the wall are proportional to individual resistances The relationship is not generalised ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A __________ evaporator employs an annular downtake. Basket type Long tube vertical Horizontal None of these Basket type Long tube vertical Horizontal None of these 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? 81.25 48.25 35.5 43.75 81.25 48.25 35.5 43.75 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass __________ through the heat exchanger. Four times Twice Thrice Once Four times Twice Thrice Once ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For an ideal black body Transmissivity = 1 Absorptivity = 1 Reflectivity = 1 Emissivity = 0 Transmissivity = 1 Absorptivity = 1 Reflectivity = 1 Emissivity = 0 ANSWER DOWNLOAD EXAMIANS APP
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