Heat Transfer For what value of Prandtl number, St = f/2? 1 2 > 1 1.5 1 2 > 1 1.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A diathermaneous substance __________ the thermal radiation completely. None of these Absorbs Reflects Transmits None of these Absorbs Reflects Transmits 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 ) K/h0 2hi/K hi/K 2K/h0 K/h0 2hi/K hi/K 2K/h0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in porosity, the thermal conductivity of a solid substance May increase or decrease; depends on the solid Remains unchanged Increases Decreases May increase or decrease; depends on the solid Remains unchanged Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer It is not preferable to use superheated steam in evaporators, because of its very high temperature low film co-efficient none of the listed here high pressure high temperature low film co-efficient none of the listed here high pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ paint has the minimum absorption co-efficient. Black White lead Light cream Grey Black White lead Light cream Grey ANSWER DOWNLOAD EXAMIANS APP