Heat Transfer A metal wire of 0.01 m dia and thermal conductivity 200 W/m.K is exposed to a fluid stream with a convective heat transfer coefficient of 100 W/m².K. The Biot number is 3.5 5.6 0.0035 0.025 3.5 5.6 0.0035 0.025 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Absorptivity and refletivity of a perfect black body are respectively 0 and 0.5 1 and 0 0 and 1 1 and ? 0 and 0.5 1 and 0 0 and 1 1 and ? ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat transfer co-efficient in film type condensation is __________ that for dropwise condensation. Greater than Half Lower than Is same as Greater than Half Lower than Is same as ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which characteristic of a fluid is not important in deciding its route in a shell and tube heat exchanger? None of these Fouling characteristic Corrosiveness Viscosity None of these Fouling characteristic Corrosiveness Viscosity 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 First increase and then decrease Increase First decrease and then increase Decrease First increase and then decrease Increase First decrease and then increase ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A sphere of radius 'R₁' is enclosed in a sphere of radius 'R₂'. The view (or shape) factor for radiative heat transfer of the outer sphere with respect to the inner sphere is (R₁/R₂)2 1 R₂/(R₁+R₂) (R₁/R₂)2 1 R₂/(R₁+R₂) ANSWER DOWNLOAD EXAMIANS APP
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