Heat and Mass Transfer The process of heat transfer from one particle of the body to another by the actual motion of the heated particles, is called None of these Conduction Radiation Convection None of these Conduction Radiation Convection 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. A. (dx/dT) k. A. (dT/dx) k. (dx/dT) k. (dT/dx) k. A. (dx/dT) k. A. (dT/dx) k. (dx/dT) k. (dT/dx) ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Wien’s law states that the wave length corresponding to ________ is proportional to the absolute temperature. Both (A) and (B) None of these Minimum energy Maximum energy Both (A) and (B) None of these Minimum energy Maximum energy ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The concept of overall coefficient of heat transfer is used in case of heat transfer by Conduction Convection Radiation Conduction and convection Conduction Convection Radiation Conduction and convection ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The heat of sun reaches to us according to Convection Radiation Conduction None of these Convection Radiation Conduction None of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The transfer of heat by molecular collision is smallest in Solids Gases Liquids None of these Solids Gases Liquids None of these ANSWER DOWNLOAD EXAMIANS APP
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