Heat Transfer In case of a multipass shell and tube heat exchanger, providing a baffle on the shell side __________ the heat transfer rate. Does not affect Decreases May increase or decrease, depends on the type of baffle Increases Does not affect Decreases May increase or decrease, depends on the type of baffle Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a forward feed multiple effect evaporator unit Transfer from effect to effect is done by pumps No pump is required to withdraw the product from the last effect None of these Viscosity of liquid is highest in first effect Transfer from effect to effect is done by pumps No pump is required to withdraw the product from the last effect None of these Viscosity of liquid is highest in first effect 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 11.2 kW/m² 14.6 kW/m² 16.5 kW/m² 12.0 kW/m² 11.2 kW/m² 14.6 kW/m² 16.5 kW/m² 12.0 kW/m² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be 0.35 0.85 0.55 0.45 0.35 0.85 0.55 0.45 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The ratio of momentum diffusivity to thermal diffusivity is the __________ number. Grashoff Prandtl Nusselt Stanton Grashoff Prandtl Nusselt Stanton ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The advantage of backward feed multiple effect evaporators over forward feed units is that There is no additional cost of pumping Most concentrated liquid is at highest temperature Equal heat transfer co-efficients exist in various effects Heat sensitive material can be handled There is no additional cost of pumping Most concentrated liquid is at highest temperature Equal heat transfer co-efficients exist in various effects Heat sensitive material can be handled ANSWER DOWNLOAD EXAMIANS APP
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