Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe whose surface temperature remains constant is 88.66 1.66 3.66 Dependent on NRe only 88.66 1.66 3.66 Dependent on NRe only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation of steam on cooling surface is promoted Only in presence of air None of these An oily surface When both the steam and the tube are clean Only in presence of air None of these An oily surface When both the steam and the tube are clean ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer rate per unit area is called heat transfer co-efficient thermal diffusivity thermal conductivity heat flux heat transfer co-efficient thermal diffusivity thermal conductivity heat flux ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of most liquids First increases upto a certain temperature and then becomes constant Decreases Remains same Increases First increases upto a certain temperature and then becomes constant Decreases Remains same Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam economy in case of a triple effect evaporator will be < 1 > 1 Between 0 and 1 1 < 1 > 1 Between 0 and 1 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A multiple effect evaporator as compared to a single effect evaporator of the same capacity has Higher steam economy Lower heat transfer area Higher solute concentration in the product Lower steam economy Higher steam economy Lower heat transfer area Higher solute concentration in the product Lower steam economy ANSWER DOWNLOAD EXAMIANS APP
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