Heat and Mass Transfer Upto the critical radius of insulation, Heat flux will decrease Added insulation will decrease heat loss Added insulation will increase heat loss Convective heat loss will be less than conductive heat loss Heat flux will decrease Added insulation will decrease heat loss Added insulation will increase heat loss Convective heat loss will be less than conductive heat loss ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following property of air does not increase with rise in temperature? Dynamic viscosity Density Thermal diffusivity Thermal conductivity Dynamic viscosity Density Thermal diffusivity Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The value of the wave length for maximum emissive power is given by Stefan’s law Kirchhoff’s law Wine’s law Planck’s law Stefan’s law Kirchhoff’s law Wine’s law Planck’s law ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The automobile radiator is a heat exchanger of Counter flow type Regenerator type Parallel flow type Cross flow type Counter flow type Regenerator type Parallel flow type Cross flow type ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The rate of energy transferred by convection to that by conduction is called Biot number Stanton number Nusselt number Peclet number Biot number Stanton number Nusselt number Peclet number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Sensible heat factor is given by (where S.H. = Sensible heat, and L.H. = Latent heat) (L.H - S.H)/S.H S.H/(L.H - S.H) (S.H + L.H) /S.H S.H/(S.H + L.H) (L.H - S.H)/S.H S.H/(L.H - S.H) (S.H + L.H) /S.H S.H/(S.H + L.H) ANSWER DOWNLOAD EXAMIANS APP
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