Heat Transfer Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator? Calenderia vertical tube evaporator Horizontal tube evaporator Long vertical evaporator Agitated film evaporator Calenderia vertical tube evaporator Horizontal tube evaporator Long vertical evaporator Agitated film evaporator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum heat transfer rate is achieved in __________ flow. Laminar Turbulent Counter-current Co-current Laminar Turbulent Counter-current Co-current ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat transfer by radiation from a mild steel surface is to be reduced by reducing the emissivity of the surface. This can be best achieved by Roughening the surface Giving the surface a mirror finish Painting the surface black Painting the surface white (with aluminium paint) Roughening the surface Giving the surface a mirror finish Painting the surface black Painting the surface white (with aluminium paint) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For condensation of pure vapors, if the heat transfer co-efficients in filmwise and drop-wise condensation are respectively hf and hd, then hf < hd hf > hd hf = hd hf could be greater or smaller than hd hf < hd hf > hd hf = hd hf could be greater or smaller than hd ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The variation of thermal conductivity of a metal with temperature is often correlated using an expression of the form K = K₀ + at. where, K is the thermal conductivity and T is the temperature (in °K). The units of 'a' in SI system will be W/m.k² W/m.k W/m None, A is just a number W/m.k² W/m.k W/m None, A is just a number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An ejector is used to Remove condensate Increase pressure None of these Increase temperature Remove condensate Increase pressure None of these Increase temperature ANSWER DOWNLOAD EXAMIANS APP
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