Heat and Mass Transfer In a heat exchanger with one fluid evaporating or condensing, the surface area required is least in All of these Cross flow Counter flow Parallel flow All of these Cross flow Counter flow Parallel flow ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Radiation is the process of heat transfer in which heat flows from a ________, in a straight line, without affecting the intervening medium. Smaller body to larger body Cold body to hot body Hot body to cold body Larger body to smaller body Smaller body to larger body Cold body to hot body Hot body to cold body Larger body to smaller body ANSWER DOWNLOAD EXAMIANS APP
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 Radiation Convection Conduction None of these Radiation Convection Conduction None of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The concept of overall coefficient of heat transfer is used in case of heat transfer by Radiation Convection Conduction Conduction and convection Radiation Convection Conduction Conduction and convection ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of water _________ with rise in temperature. Increases Remain same Decreases May increase or decrease depending upon temperature Increases Remain same Decreases May increase or decrease depending upon temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Two balls of same material and finish have their diameters in the ratio of 2: 1 and both are heated to same temperature and allowed to cool by radiation. Rate of cooling by big ball as compared to smaller one will be in the ratio of 0.16736111111111 0.084027777777778 0.043055555555556 0.042361111111111 0.16736111111111 0.084027777777778 0.043055555555556 0.042361111111111 ANSWER DOWNLOAD EXAMIANS APP
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