Heat Transfer Prandtl and Reynolds analogy are same, when Prandtl number is > 2 1 1.5 0.5 > 2 1 1.5 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multipass heat exchangers are used Because of simplicity of fabrication To obtain higher heat transfer co-efficient and shorter tube To reduce the pressure drop For low heat load Because of simplicity of fabrication To obtain higher heat transfer co-efficient and shorter tube To reduce the pressure drop For low heat load ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In forced convection, the heat transfer depends on mainly Gr Re, Gr none of the listed here Re, Pr mainly Gr Re, Gr none of the listed here Re, Pr ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Temperature profile in steady state heat transfer is none of the listed here parabolic hyperbolic Linear none of the listed here parabolic hyperbolic Linear ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of vertical tube evaporator, with increase in liquor level, the overall heat transfer co-efficient Increases May increase or decrease; depends on the feed Is not affected Decreases Increases May increase or decrease; depends on the feed Is not affected Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In sub-cooled boiling, Temperature of the heating surface is more than the boiling point of the liquid 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 Very large vapour space is necessary Temperature of the heating surface is more than the boiling point of the liquid 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 Very large vapour space is necessary ANSWER DOWNLOAD EXAMIANS APP
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