Heat Transfer In case of vertical tube evaporator, with increase in liquor level, the overall heat transfer co-efficient May increase or decrease; depends on the feed Decreases Increases Is not affected May increase or decrease; depends on the feed Decreases Increases Is not affected 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 11.2 kW/m² 16.5 kW/m² 12.0 kW/m² 14.6 kW/m² 11.2 kW/m² 16.5 kW/m² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the geometric mean of two heat transfer areas A₁ and A₂ ? √(A₁ . A₂) 1/2 √(A₁ . A₂) 2 √(A₁ . A₂) √(A₁ + A₂) √(A₁ . A₂) 1/2 √(A₁ . A₂) 2 √(A₁ . A₂) √(A₁ + A₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a forward feed multiple effect, the pressure build up will be highest at the outlet of the last effect least at the outlet of the last effect highest at the inlet of the last effect least at the inlet of the first effect highest at the outlet of the last effect least at the outlet of the last effect highest at the inlet of the last effect least at the inlet of the first effect ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the emissivity of a black body? 1 0.5 0.9 1 0.5 0.9 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If the baffle spacing in a shell and tube heat exchanger increases, then the Reynolds number of the shell side fluid Remains unchanged Increases Increases or decreases depending on number of shell passes Decreases Remains unchanged Increases Increases or decreases depending on number of shell passes Decreases ANSWER DOWNLOAD EXAMIANS APP
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