Heat Transfer Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid when Grashhoff number is very important for fluids in tubulent flow none of the listed here for fluids in laminar flow when Grashhoff number is very important for fluids in tubulent flow none of the listed here for fluids in laminar flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A multiple effect evaporator has a capacity to process 4000 kg of solid caustic soda per day, when it is concentrating from 10% to 25% solids. The water evaporated in kg per day is 48000 24000 6000 60000 48000 24000 6000 60000 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Grashoff number is defined as the ratio of the inertial to viscous forces. buoyancy to viscous forces buoyancy to inertial forces buoyancy to surface tension forces inertial to viscous forces. buoyancy to viscous forces buoyancy to inertial forces buoyancy to surface tension forces ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Presence of a non-condensing gas in a condensing vapour None of the listed here decreases thermal resistance increases the rate of condensation is desirable to increase the film co-efficient None of the listed here decreases thermal resistance increases the rate of condensation is desirable to increase the film co-efficient 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 Evaporation by thermocompression results in the Both A and B Saving of steam None of these Realisation of multiple effect economy in a single effect Both A and B Saving of steam None of these Realisation of multiple effect economy in a single effect ANSWER DOWNLOAD EXAMIANS APP
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