Heat Transfer Thermal diffusivity of a material Is the ratio of thermal conductivity to thermal capacity Has the unit m² /sec All of these Is defined as K/ρ . Cp Is the ratio of thermal conductivity to thermal capacity Has the unit m² /sec All of these Is defined as K/ρ . Cp ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has maximum thermal conductivity? Iron Nitrogen Coal Tar Iron Nitrogen Coal Tar ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Open pan evaporators are preferred to be used, when the solution to be concentrated is Highly viscous Corrosive Scaling Salty Highly viscous Corrosive Scaling Salty ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vent pipes are provided in a condenser to Remove non-condensable gases Facilitate easy cleaning of tubes None of these Purge the condenser Remove non-condensable gases Facilitate easy cleaning of tubes None of these Purge the condenser ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius 'r' of insulation on a pipe is given by r = k/2h r = k/h r = h/k r = 2k/h r = k/2h r = k/h r = h/k r = 2k/h 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
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