Heat Transfer In a backward feed multiple effect evaporator No pumps are required between successive effects Feed is introduced in the first effect None of these Feed flows from low pressure to high pressure No pumps are required between successive effects Feed is introduced in the first effect None of these Feed flows from low pressure to high pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The steam ejector is used to Create vacuum Superheat the steam None of these Remove condensate from the steam pipelines Create vacuum Superheat the steam None of these Remove condensate from the steam pipelines ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe, where the wall heat flux is constant, is 120.36 4.36 2.36 Dependent on NRe only 120.36 4.36 2.36 Dependent on NRe only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The capacity of double-effect evaporator is less than half of the capacity of two single effects, each of which is operating over same terminal temperature difference, when the Solution has an elevation of boiling point None of these Evaporators opreate at atmospheric pressure Evaporators operate under vacuum Solution has an elevation of boiling point None of these Evaporators opreate at atmospheric pressure Evaporators operate under vacuum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium. This is __________ law. Wien's displacement Stefan-Boltzman Kirchoffs Planck's Wien's displacement Stefan-Boltzman Kirchoffs Planck's ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. Remain unchanged May increase or decrease; depends on the pressure Decrease Increase Remain unchanged May increase or decrease; depends on the pressure Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
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