Heat and Mass Transfer Stefan Boltzmann law is applicable for heat transfer by Conduction and radiation combined Conduction Convection Radiation Conduction and radiation combined Conduction Convection Radiation ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of water in general with rise in temperature Decreases May increase or decrease depending on temperature Increases Remain constant Decreases May increase or decrease depending on temperature Increases Remain constant ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The value of the wave length for maximum emissive power is given by Kirchhoff’s law Wine’s law Planck’s law Stefan’s law Kirchhoff’s law Wine’s law Planck’s law Stefan’s law ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following has least value of conductivity? Plastic Glass Air Water Plastic Glass Air Water ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Depending on the radiating properties, a body will be opaque when P = 0, x = 0 and a = 1 P = 0, x = 1 and a = 0 P=1, x = 0 and a = 0 X = 0, a + p = 1 P = 0, x = 0 and a = 1 P = 0, x = 1 and a = 0 P=1, x = 0 and a = 0 X = 0, a + p = 1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat transfer takes place as per First law of thermodynamic 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 ANSWER DOWNLOAD EXAMIANS APP