Heat Transfer The overall resistance for heat transfer through a series of flat resistance, is the __________ of the resistances. Geometric mean Product Average Sum Geometric mean Product Average Sum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A diathermaneous substance __________ the thermal radiation completely. Reflects Absorbs Transmits None of these Reflects Absorbs Transmits None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is Linear Hyperbolic Parabolic None of these Linear Hyperbolic Parabolic None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius of insulation for cylindrical pipe is (where, hi = heat transfer coefficient at inside of the pipe ) hi/K K/h0 2K/h0 2hi/K hi/K K/h0 2K/h0 2hi/K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The thermal boundary layer at NPr > 1 Is thicker than hydrodynamic boundary layer Disappears And the hydrodynamic boundary layer are identical Is thinner than hydrodynamic boundary layer Is thicker than hydrodynamic boundary layer Disappears And the hydrodynamic boundary layer are identical Is thinner than hydrodynamic boundary layer ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law. Logarithmic Hyperbolic Parabolic Linear Logarithmic Hyperbolic Parabolic Linear ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS