Heat Transfer The energy radiated from a surface Q at absolute temperature T is related as Q ∝ T⁴ Q ∝ T³ Q ∝ T² None of these Q ∝ T⁴ Q ∝ T³ Q ∝ T² None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vacuum is generally maintained in the vapour space of an evaporator mainly to Concentrate heat sensitive materials Achieve very high concentration of the final product Get economical temperature difference by using moderate pressure steam Facilitate forward feeding in multiple effect evaporation Concentrate heat sensitive materials Achieve very high concentration of the final product Get economical temperature difference by using moderate pressure steam Facilitate forward feeding in multiple effect evaporation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, the hydrodynamic and thermal boundary layers of a fluid flowing over a heated plate will be identical? < 1 > 1 1 None of these < 1 > 1 1 None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ heat exchanger is used for chilling oil to be dewaxed. Floating head U-tube Fixed tube Double pipe Floating head U-tube Fixed tube Double pipe ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation is promoted on a/an __________ surface. Coated Oily Smooth Glazed Coated Oily Smooth Glazed ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m². The flux, when the element temperature is increased to 1000°C for the same furnace temperature is 12.0 kW/m² 14.6 kW/m² 16.5 kW/m² 11.2 kW/m² 12.0 kW/m² 14.6 kW/m² 16.5 kW/m² 11.2 kW/m² ANSWER DOWNLOAD EXAMIANS APP
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