Heat Transfer The purpose of providing a 'catchall' in the vapor line of an evaporator is to Vent the non-condensible gases Regulate the vapor flow Arrest the entrained liquid Create vacuum Vent the non-condensible gases Regulate the vapor flow Arrest the entrained liquid Create vacuum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a supercooled solution, which is on the verge of crystallisation, the free energy of the solution as compared to that of the solid is Less More or less; depends on the nature of solution More Same Less More or less; depends on the nature of solution More Same ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling? Square pitch Diagonal square pitch Triangular pitch None of these Square pitch Diagonal square pitch Triangular pitch None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is generally considered as opaque surface towards radiations? Both solids & liquids Gases Liquids Solids Both solids & liquids Gases Liquids Solids ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a heat exchanger with steam outside the tubes, a liquid gets heated to 45°C, when its flow velocity in the tubes is 2 m/s. If the flow velocity is reduced to 1 m/s, other things remaining the same, the temperature of the exit liquid will be Less than 45°C Equal to 45°C Initially decreases and remains constant thereafter More than 45°C Less than 45°C Equal to 45°C Initially decreases and remains constant thereafter More than 45°C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For flow over a flat plate, the ratio of thermal boundary layer thickness, 'xt' and hydrodynamic boundary layer thickness 'x' is equal to (where, NPr = Prandtl number) NPr-1/3 NPr1/3 NPr-1 NPr NPr-1/3 NPr1/3 NPr-1 NPr ANSWER DOWNLOAD EXAMIANS APP
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