Heat Transfer Radiant energy received by a body is proportional to (where, d = the distance between the object emitting radiation and that receiving it.) d1.5 √d d2 d d1.5 √d d2 d ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Fourier's law, the proportionality constant is called the Thermal conductivity Heat transfer co-efficient Thermal diffusivity Stefan-Boltzman constant Thermal conductivity Heat transfer co-efficient Thermal diffusivity Stefan-Boltzman constant 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 Heat waves Can not pass through vacuum Both B and C Travel in straight line Can be reflected by a mirror Can not pass through vacuum Both B and C Travel in straight line Can be reflected by a mirror ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a given ambient air temperature with increase in the thickness of insulation of a hot cylinderical pipe, the rate of heat loss from the surface would Decrease Increase First decrease and then increase First increase and then decrease Decrease Increase First decrease and then increase First increase and then decrease ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number for full developed, laminar, constant property flow in a pipe at uniform heat flux is 0.72 83 4.364 18 0.72 83 4.364 18 ANSWER DOWNLOAD EXAMIANS APP
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