Heat and Mass Transfer Conduction is a process of heat transfer None of these From one particle of the body to another by the actual motion of the heated particles From one particle of the body to another without the actual motion of the particles From a hot body to a cold body, in a straight line, without affecting the intervening medium None of these From one particle of the body to another by the actual motion of the heated particles From one particle of the body to another without the actual motion of the particles From a hot body to a cold body, in a straight line, without affecting the intervening medium ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat transfer takes place as per Second law of the thermodynamics Kirchoff's law Zeroth law of thermodynamics First law of thermodynamic Second law of the thermodynamics Kirchoff's law Zeroth law of thermodynamics First law of thermodynamic ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The thermal diffusivities for solids are generally More than those for liquids and gases More or less same as for liquids and gases Less than those for gases Less than those for liquids More than those for liquids and gases More or less same as for liquids and gases Less than those for gases Less than those for liquids ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Stefan's law, the total radiation from a black body per second per unit area is proportional to T5 T T2 Absolute temperature T5 T T2 Absolute temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In free convection heat transfer transition from laminar to turbulent flow is governed by the critical value of the Prandtl number, Grashoff's number Reynold's number, Grashoff's number Reynold's number Grashoff's number Prandtl number, Grashoff's number Reynold's number, Grashoff's number Reynold's number Grashoff's number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Depending on the radiating properties, a body will be black when (Where a = absorptivity, p = reflectivity, X = transmissivity.) X = 0, a + p = 0 P = 0, x = 0 and a = 1 P= 1, T = 0 and a = 0 P = 0, x = 1 and a = 0 X = 0, a + p = 0 P = 0, x = 0 and a = 1 P= 1, T = 0 and a = 0 P = 0, x = 1 and a = 0 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS