Heat Transfer Harmonic mean temperature difference is given by √(ΔT₁ . ΔT₂) 2.(ΔT₁ . ΔT₂)/(ΔT₁ + ΔT₂) 2.(ΔT₁ . ΔT₂)(ΔT₁ - ΔT₂) (ΔT₁ - ΔT₂)/(ΔT₁ . ΔT₂) √(ΔT₁ . ΔT₂) 2.(ΔT₁ . ΔT₂)/(ΔT₁ + ΔT₂) 2.(ΔT₁ . ΔT₂)(ΔT₁ - ΔT₂) (ΔT₁ - ΔT₂)/(ΔT₁ . ΔT₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation is promoted on a/an __________ surface. Coated Oily Glazed Smooth Coated Oily Glazed Smooth ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides Higher economy Both A & B Lower economy Lower capacity Higher economy Both A & B Lower economy Lower capacity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Double pipe heat exchangers are preferably useful, when Overall heat transfer co-efficient is very high Requirement of heat transfer area is low High viscosity liquid is to be cooled A corrosive liquid is to be heated Overall heat transfer co-efficient is very high Requirement of heat transfer area is low High viscosity liquid is to be cooled A corrosive liquid is to be heated 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 Decreases Remains unchanged Increases or decreases depending on number of shell passes Increases Decreases Remains unchanged Increases or decreases depending on number of shell passes ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer When warm and cold liquids are mixed, the heat transfer is mainly by radiation none of the listed here convection conduction radiation none of the listed here convection conduction ANSWER DOWNLOAD EXAMIANS APP
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