Heat Transfer Absorptivity and refletivity of a perfect black body are respectively 1 and 0 0 and 0.5 0 and 1 1 and ? 1 and 0 0 and 0.5 0 and 1 1 and ? ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Economy of a multiple effect evaporator depends upon the Neither A nor B Rate of heat transfer Heat balance consideration Both A and B Neither A nor B Rate of heat transfer Heat balance consideration Both A and B 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 Lower capacity Both A & B Lower economy Higher economy Lower capacity Both A & B Lower economy 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 Painting the surface black Painting the surface white (with aluminium paint) Giving the surface a mirror finish Roughening the surface Painting the surface black Painting the surface white (with aluminium paint) Giving the surface a mirror finish Roughening the surface ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Choose the correct equation. Nu = (Re) (Pr) (Gz) Nu = (Pr)(St) Nu = (Re)(Pr) Nu = (Re) (Pr) (St) Nu = (Re) (Pr) (Gz) Nu = (Pr)(St) Nu = (Re)(Pr) Nu = (Re) (Pr) (St) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The average heat transfer co-efficient for laminar film condensation on vertical surface is inversely proportional to (where, ΔT = Temperature drop across condensate film ) (ΔT)1/4 None of the listed here ΔT (ΔT)2 (ΔT)1/4 None of the listed here ΔT (ΔT)2 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS