Heat Transfer Grashhoff number is given by gD³βΔtP²/μ gD2βΔtP²μ gD³.β.Δtρ²/μ² gD2βΔtρ/μ² gD³βΔtP²/μ gD2βΔtP²μ gD³.β.Δtρ²/μ² gD2βΔtρ/μ² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Unsteady state heat conduction occurs, when Temperature distribution is dependent on time Three dimensional heat flow is concerned Heat flows in one direction only Temperature distribution is independent of time Temperature distribution is dependent on time Three dimensional heat flow is concerned Heat flows in one direction only Temperature distribution is independent of time ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer It is not preferable to use superheated steam in evaporators, because of its very high pressure low film co-efficient high temperature none of the listed here high pressure low film co-efficient high temperature none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer According to Reynolds analogy, Stanton number is equal to 2f f/4 f f/2 2f f/4 f f/2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation of steam on cooling surface is promoted None of these Only in presence of air When both the steam and the tube are clean An oily surface None of these Only in presence of air When both the steam and the tube are clean An oily surface ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer rate per unit area is called thermal diffusivity thermal conductivity heat transfer co-efficient heat flux thermal diffusivity thermal conductivity heat transfer co-efficient heat flux ANSWER DOWNLOAD EXAMIANS APP
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