Heat Transfer Electromagnetic radiations propagate in vacuum with a velocity of __________ metre/second. 3 x l05 3 x l010 3 x l08 3 x l012 3 x l05 3 x l010 3 x l08 3 x l012 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Analogy between mass and heat transfer is not applicable in case of Thermal or pressure mass diffusion Both B and C Viscous heating or chemical reaction Same velocity profile or equal eddy diffusivities Thermal or pressure mass diffusion Both B and C Viscous heating or chemical reaction Same velocity profile or equal eddy diffusivities ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of __________ boiling, the liquid temperature is below the saturation temperature and the boiling takes place in the vicinity of the heated surface. Saturated Nucleate Local Pool Saturated Nucleate Local Pool ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following situations can be approximated to a steady state heat transfer system? 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 red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmosheric air at 35°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 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 red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmosheric air at 35°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 Maximum heat transfer rate is achieved in __________ flow. Counter-current Co-current Laminar Turbulent Counter-current Co-current Laminar Turbulent ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fruit juice (a heat sensitive material) can be concentrated in a __________ evaporator. High pressure None of these Long tube Falling film High pressure None of these Long tube Falling film ANSWER DOWNLOAD EXAMIANS APP
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