Heat Transfer The critical radius of insulation for cylindrical pipe is (where, hi = heat transfer coefficient at inside of the pipe ) 2hi/K 2K/h0 K/h0 hi/K 2hi/K 2K/h0 K/h0 hi/K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A cube, sphere & a thin circular plate (all having same mass and made of same material) are all heated to 300°C and allowed to cool in natural air. Which one will cool the slowest ? Sphere Cube Plate All of these Sphere Cube Plate All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which area is used in case of heat flow by conduction through a cylinder ? Geometric mean area None of the listed here Arithmetic mean area Logarithmic mean area Geometric mean area None of the listed here Arithmetic mean area Logarithmic mean area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In sub-cooled boiling, Temperature of the heating surface is less than the boiling point of the liquid Temperature of the heating surface is more than the boiling point of the liquid Very large vapour space is necessary Bubbles from heating surface are absorbed by the mass of the liquid Temperature of the heating surface is less than the boiling point of the liquid Temperature of the heating surface is more than the boiling point of the liquid Very large vapour space is necessary Bubbles from heating surface are absorbed by the mass of the liquid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Graetz number is concerned with the heat transfer in laminar flow absorption with chemical reaction mass transfer between a gas and a liquid heat transfer in turbulent flow heat transfer in laminar flow absorption with chemical reaction mass transfer between a gas and a liquid heat transfer in turbulent flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer It is not preferable to use superheated steam in evaporators, because of its very none of the listed here high pressure low film co-efficient high temperature none of the listed here high pressure low film co-efficient high temperature ANSWER DOWNLOAD EXAMIANS APP
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