Heat Transfer For small temperature difference, the heat transfer rate as per Newton's law of cooling is proportional to (where, Δt = excess temperature) Δt² √Δt Δt³ Δt Δt² √Δt Δt³ Δt ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Double pipe heat exchangers are preferably useful, when Requirement of heat transfer area is low A corrosive liquid is to be heated Overall heat transfer co-efficient is very high High viscosity liquid is to be cooled Requirement of heat transfer area is low A corrosive liquid is to be heated Overall heat transfer co-efficient is very high High viscosity liquid is to be cooled ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Minimum recommended baffle spacing in a shell and tube heat exchanger is about (where, D = shell diameter) 0.4 D 0.2 D 0.3 D 0.5 D 0.4 D 0.2 D 0.3 D 0.5 D ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Harmonic mean temperature difference is given by 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) √(ΔT₁ . ΔT₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiator of an automobile engine is a __________ type of heat exchanger. Direct contact Cross-current Co-current Counter-current Direct contact Cross-current Co-current Counter-current ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Solid angle subtended by the finite surface at the radiating element is called the view factor. proportional to the square of the distance between surfaces expressed in terms of radians called the angle of vision called the view factor. proportional to the square of the distance between surfaces expressed in terms of radians called the angle of vision ANSWER DOWNLOAD EXAMIANS APP
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