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 16.5 kW/m² 14.6 kW/m² 12.0 kW/m² 11.2 kW/m² 16.5 kW/m² 14.6 kW/m² 12.0 kW/m² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of floating head in a heat exchanger is to Avoid buckling of tubes Facilitate its lengthening, if needed Decrease the pressure drop Provide support for tubes Avoid buckling of tubes Facilitate its lengthening, if needed Decrease the pressure drop Provide support for tubes ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger? Pressure Corrosiveness & fouling characteristics Viscosity Density Pressure Corrosiveness & fouling characteristics Viscosity Density ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is not used as a medium for high temperature heating ? mercury None of the listed here liquid metal dowtherm mercury None of the listed here liquid metal dowtherm ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A hollow sphere and a solid sphere of the same material and equal radii are heated to the same temperature. In this case, Both will absorb equal amount of radiation from the surrounding in the beginning Both the spheres will emit equal amount of radiation per unit time in the beginning The cooling rate will be the same for the two spheres and hence the two spheres will have equal temperatures at any instant Both B & C Both will absorb equal amount of radiation from the surrounding in the beginning Both the spheres will emit equal amount of radiation per unit time in the beginning The cooling rate will be the same for the two spheres and hence the two spheres will have equal temperatures at any instant Both B & C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Black liquor generated during paper manufacture is concentrated in a multiple effect evaporator single effect evaporator multiple effect evaporators followed by a crystalliser single effect evaporator followed by a crystalliser multiple effect evaporator single effect evaporator multiple effect evaporators followed by a crystalliser single effect evaporator followed by a crystalliser ANSWER DOWNLOAD EXAMIANS APP
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