Heat Transfer The number of kg vaporised per kg of steam fed to the evaporator is defined as Capacity Rate of evaporation Economy Rate of vaporisation Capacity Rate of evaporation Economy Rate of vaporisation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If the baffle spacing in a shell and tube heat exchanger increases, then the Reynolds number of the shell side fluid Increases or decreases depending on number of shell passes Decreases Remains unchanged Increases Increases or decreases depending on number of shell passes Decreases Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Grashhoff number is given by gD2βΔtP²μ gD³βΔtP²/μ gD2βΔtρ/μ² gD³.β.Δtρ²/μ² gD2βΔtP²μ gD³βΔtP²/μ gD2βΔtρ/μ² gD³.β.Δtρ²/μ² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A 10 cm dia steam pipe, carrying steam at 180°C, is covered with an insulation (conductivity = 0.6 W/m.°C). It losses heat to the surroundings at 30°C. Assume a heat transfer co-efficient of 0.8 W/m².°C for heat transfer from surface to the surroundings. Neglect wall resistance of the pipe and film resistance of steam. If the insulation thickness is 2 cms, the rate of heat loss from this insulated pipe will be Less than the steam pipe with 5 cms insulation Greater than that for uninsulated steam pipe Less than that of the uninsulated steam pipe Equal to that of the uninsulated steam pipe Less than the steam pipe with 5 cms insulation Greater than that for uninsulated steam pipe Less than that of the uninsulated steam pipe Equal to that of the uninsulated steam pipe ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Rate of heat transfer by vaporisation from pools of water is affected by the Nature of heating surface and distribution of bubbles All of these Viscosity of water Surface tension of water Nature of heating surface and distribution of bubbles All of these Viscosity of water Surface tension of water ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the Minimum resistance presents in the series Sum of all resistances Maximum resistance in the series Average of all resistances Minimum resistance presents in the series Sum of all resistances Maximum resistance in the series Average of all resistances ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS