Heat Transfer Which of the following is generally considered as opaque surface towards radiations? Gases Both solids & liquids Solids Liquids Gases Both solids & liquids Solids Liquids ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the most suitable for cold viscous feed? Parallel feed Backward feed Forward feed Mixed feed Parallel feed Backward feed Forward feed Mixed feed ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporation accounts for None of these Lower operating costs Steam economy Investment economy None of these Lower operating costs Steam economy Investment economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following situations can be approximated to a steady state heat transfer system? A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmosheric air at 35°C 10 kg of dry saturated steam at 8 kgf/cm² flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C Boiling brine kept in open vessel when the bottom surface temperature of the vessel is maintained constant at 180°C A sub-cooled refrigerant liquid at 8°C flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmosheric air at 35°C 10 kg of dry saturated steam at 8 kgf/cm² flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C Boiling brine kept in open vessel when the bottom surface temperature of the vessel is maintained constant at 180°C A sub-cooled refrigerant liquid at 8°C flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which one gives the monochromatic emissive power for black body radiation ? Planck's law Kirchhoffs law Wien's law Stefan-Boltzman law Planck's law Kirchhoffs law Wien's law Stefan-Boltzman law ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Solid angle subtended by the finite surface at the radiating element is expressed in terms of radians called the angle of vision proportional to the square of the distance between surfaces called the view factor. expressed in terms of radians called the angle of vision proportional to the square of the distance between surfaces called the view factor. ANSWER DOWNLOAD EXAMIANS APP
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