Heat Transfer A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides Both A & B Lower economy Lower capacity Higher economy Both A & B Lower economy Lower capacity Higher economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Biot number, the characteristic length used is the ratio of the __________ of the solid. Surface area to perimeter Surface area to volume Perimeter to surface area Volume to surface area Surface area to perimeter Surface area to volume Perimeter to surface area Volume to surface area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Water always boils when its Vapour pressure equals 76 cm of Hg Saturated vapour pressure is less than the atmospheric pressure Saturated vapour pressure equals the external pressure on its surface Temperature reaches 100° C Vapour pressure equals 76 cm of Hg Saturated vapour pressure is less than the atmospheric pressure Saturated vapour pressure equals the external pressure on its surface Temperature reaches 100° C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Controlling heat transfer film co-efficient is the one, which offers __________ resistance to heat transfer. no the least the largest lower no the least the largest lower ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Corrosiveness of steam condensate is due to the presence of Both A & B Dissolved O₂ CO₂ Neither A nor B Both A & B Dissolved O₂ CO₂ Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in porosity, the thermal conductivity of a solid substance Increases Decreases May increase or decrease; depends on the solid Remains unchanged Increases Decreases May increase or decrease; depends on the solid Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
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