Heat Transfer An ejector is used to Increase pressure Increase temperature None of these Remove condensate Increase pressure Increase temperature None of these Remove condensate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following parameters is increased by use of finned tube in a multipass shell and tube heat exchanger? Convective heat transfer co-efficient Effective tube surface area for convective heat transfer All of these Tube side pressure drop and the heat transfer rate Convective heat transfer co-efficient Effective tube surface area for convective heat transfer All of these Tube side pressure drop and the heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The steam ejector is used to Superheat the steam Remove condensate from the steam pipelines Create vacuum None of these Superheat the steam Remove condensate from the steam pipelines Create vacuum None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fourier's law of heat conduction applies to __________ surfaces. Both A and B Isothermal Neither A and B Non-isothermal Both A and B Isothermal Neither A and B Non-isothermal ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following situations can be approximated to a steady state heat transfer system? 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 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 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The local surface conductance for laminar film condensation on vertical surface is (where, t = film thickness) ∝ √t ∝ 1/t ∝ t Independent of 't' ∝ √t ∝ 1/t ∝ t Independent of 't' ANSWER DOWNLOAD EXAMIANS APP
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