Heat and Mass Transfer In case of liquids and gases, the heat transfer takes place according to None of these Convection Conduction Radiation None of these Convection Conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer When heat is transferred from one particle of hot body to another by actual motion of the heated particles, it is referred to as heat transfer by Radiation Conduction and convection Conduction Convection Radiation Conduction and convection Conduction Convection ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The total emissivity power is .defined as the total amount of radiation emitted by a black body per unit Area Temperature Time Thickness Area Temperature Time Thickness ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Kirchoff's law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a Grey body Black body Brilliant white polished body Red hot body Grey body Black body Brilliant white polished body Red hot body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer An electric cable of aluminium conductor (k = 240 W/mK) is to be insulated with rubber (k = 0.15 W/mK). The cable is to be located in air (h = 6 W/m²). The critical thickness of insulation will be 25 mm 160 mm 40 mm 800 mm 25 mm 160 mm 40 mm 800 mm ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The rate of heat flow through a body is Q = [kA (T₁ - T₂)]/x. The term x/kA is known as Thermal conductivity None of these Thermal coefficient Thermal resistance Thermal conductivity None of these Thermal coefficient Thermal resistance ANSWER DOWNLOAD EXAMIANS APP
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