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 14.6 kW/m² 11.2 kW/m² 12.0 kW/m² 16.5 kW/m² 14.6 kW/m² 11.2 kW/m² 12.0 kW/m² 16.5 kW/m² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Kirchoff's law is applicable to Monochromatic radiation only Only volumes and not to surfaces Total radiation only Both A and B Monochromatic radiation only Only volumes and not to surfaces Total radiation only Both A and B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following accessories is provided in the vapor line of an evaporator for removing the entrained liquid? Baffle Vent Bleed point Catchall Baffle Vent Bleed point Catchall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a vertical tube evaporator, with increase in the liquor level, the True temperature drop increases Capacity of the evaporator is decreased Both B and C Capacity of the evaporator is increased True temperature drop increases Capacity of the evaporator is decreased Both B and C Capacity of the evaporator is increased ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Hot water (0.01 m³ /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m³/min) of density 800 kg/m³ and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately 50 32 37 45 50 32 37 45 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The statement that "maximum wavelength of radiation is inversly proportional to the temperature" is __________ law. Stefan-Boltzman's Wien's displacement None of these Planck's Stefan-Boltzman's Wien's displacement None of these Planck's ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS