Heat and Mass Transfer An ordinary passenger aircraft requires a cooling system of capacity. 8 TR 4 TR 2 TR 10 TR 8 TR 4 TR 2 TR 10 TR ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat is transferred by all three modes of transfer, viz. conduction, convection and radiation in Steam condenser Electric heater Boiler Refrigerator condenser coils Steam condenser Electric heater Boiler Refrigerator condenser coils ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal diffusivity of a substance is Inversely proportional to density of substance All of these Directly proportional to the thermal conductivity Inversely proportional to specific heat Inversely proportional to density of substance All of these Directly proportional to the thermal conductivity Inversely proportional to specific heat ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The product of Reynolds number and Prandtl number is known as Biot number Grashoff number Peclet number Stanton number Biot number Grashoff number Peclet number Stanton number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow, and k = Thermal conductivity of the body) k. (dT/dx) k. (dx/dT) k. (dx/dT) (dT/dx) k. k. (dT/dx) k. (dx/dT) k. (dx/dT) (dT/dx) k. ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Total emissivity of polished silver compared to black body is Higher More or less same Same Very much lower Higher More or less same Same Very much lower ANSWER DOWNLOAD EXAMIANS APP
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