Heat Transfer The purpose of floating head in a heat exchanger is to Avoid buckling of tubes Provide support for tubes Facilitate its lengthening, if needed Decrease the pressure drop Avoid buckling of tubes Provide support for tubes Facilitate its lengthening, if needed Decrease the pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is correct ? Driving force = Rate x Resistance Resistance = Driving force x Rate Rate = Resistance/Driving force Rate = Driving force x Resistance Driving force = Rate x Resistance Resistance = Driving force x Rate Rate = Resistance/Driving force Rate = Driving force x Resistance ANSWER DOWNLOAD EXAMIANS APP
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 In forced convection, the heat transfer depends on Re, Gr none of the listed here mainly Gr Re, Pr Re, Gr none of the listed here mainly Gr Re, Pr ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Economy of a multiple effect evaporator depends upon the Rate of heat transfer Both A and B Heat balance consideration Neither A nor B Rate of heat transfer Both A and B Heat balance consideration Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer While the total emissivity of a perfect black body is unity, the same for a real body is between 0 and 1 0 1 >1 between 0 and 1 0 1 >1 ANSWER DOWNLOAD EXAMIANS APP