Heat Transfer Which is the most suitable for the concentration of foamy & frothy liquors? Agitated film evaporator None of these Long tube vertical evaporator Open pan evaporator Agitated film evaporator None of these Long tube vertical evaporator Open pan evaporator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat transfer by radiation from a mild steel surface is to be reduced by reducing the emissivity of the surface. This can be best achieved by Painting the surface white (with aluminium paint) Roughening the surface Painting the surface black Giving the surface a mirror finish Painting the surface white (with aluminium paint) Roughening the surface Painting the surface black Giving the surface a mirror finish ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Baffles are provided in heat exchangers to increase the Heat transfer co-efficient Fouling factor Heat transfer area Heat transfer rate Heat transfer co-efficient Fouling factor Heat transfer area Heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1000 Kg of liquid at 30°C in a well stirred vessel has to be heated to 120°C, using immersed coils carrying condensing steam at 150°C. The area of the steam coils is 1.2 m² and the overall heat transfer co-efficient to the liquid is 1500 W/m².°C. Assuming negligible heat loss to the surrounding and specific heat capacity of the liquid to be 4 kJ/kg.°C, the time taken for the liquid to reach desired temperature will be 44 min 51 min 22 min 15 min 44 min 51 min 22 min 15 min ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction in the turbulent core of a fluid flowing through a heated pipe is negligible, if the value of Prandtl number is 0.8 0.4 0.6 0.2 0.8 0.4 0.6 0.2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is the most controlling factor for the rate of bubble detachment from the hot solid surface? Interfacial tension Liquid density Liquid viscosity Hot surface temperature Interfacial tension Liquid density Liquid viscosity Hot surface temperature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS