Heat Transfer A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides Lower capacity Higher economy Both A & B Lower economy Lower capacity Higher economy Both A & B Lower economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Low thermal conductivity of heat insulating materials is due to its None of these Dense structure High specific heat High proportion of air space None of these Dense structure High specific heat High proportion of air space ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Harmonic mean temperature difference is given by √(ΔT₁ . ΔT₂) 2.(ΔT₁ . ΔT₂)(ΔT₁ - ΔT₂) (ΔT₁ - ΔT₂)/(ΔT₁ . ΔT₂) 2.(ΔT₁ . ΔT₂)/(ΔT₁ + ΔT₂) √(ΔT₁ . ΔT₂) 2.(ΔT₁ . ΔT₂)(ΔT₁ - ΔT₂) (ΔT₁ - ΔT₂)/(ΔT₁ . ΔT₂) 2.(ΔT₁ . ΔT₂)/(ΔT₁ + ΔT₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The film co-efficient is decreased due to the presence of non-condensing gases in the vapors. The film co-efficient of superheated vapor as compared to that of saturated vapor is Less Either more or less ; depends on the nature of vapor Some More Less Either more or less ; depends on the nature of vapor Some More ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a multipass shell and tube heat exchanger, the LMTD correction factor is always Between 1 & 2 > 1 < 1 1 Between 1 & 2 > 1 < 1 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is unimportant in forced convection ? Prandtl number Grashhoff number none of the listed here Reynolds number Prandtl number Grashhoff number none of the listed here Reynolds number ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS