Heat Transfer With increase in porosity, the thermal conductivity of a solid substance Decreases May increase or decrease; depends on the solid Remains unchanged Increases Decreases May increase or decrease; depends on the solid Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which has the lowest Prandtl number? Liquid metal Lube oil Water Aqueous solution Liquid metal Lube oil Water Aqueous solution ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has maximum thermal conductivity? Nitrogen Iron Tar Coal Nitrogen Iron Tar Coal ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In SI units, fouling factor is expressed in m²°K/W m°K/W W/m²°K m²°K m²°K/W m°K/W W/m²°K m²°K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A 2-4 heat exchanger involves Smaller pressure drop compared to 1-2 exchanger Only counter-flow of fluids Only parallel-flow of fluids Both counter and parallel-flow of the fluids Smaller pressure drop compared to 1-2 exchanger Only counter-flow of fluids Only parallel-flow of fluids Both counter and parallel-flow of the fluids ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides Lower capacity Higher economy Both A & B Lower economy Lower capacity Higher economy Both A & B Lower economy ANSWER DOWNLOAD EXAMIANS APP
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