Heat Transfer A hot body will radiate heat most rapidly, if its surface is White & rough White & polished Black & polished Black & rough White & rough White & polished Black & polished Black & rough ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, conduction is negligible in the turbulent core of a fluid flowing through a heated pipe? < 0.5 < 0.1 0.5 > 0.6 < 0.5 < 0.1 0.5 > 0.6 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Biot number, the characteristic length used is the ratio of the __________ of the solid. Perimeter to surface area Surface area to perimeter Volume to surface area Surface area to volume Perimeter to surface area Surface area to perimeter Volume to surface area Surface area to volume ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiant energy received by a body is proportional to (where, d = the distance between the object emitting radiation and that receiving it.) d √d d2 d1.5 d √d d2 d1.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, square pitch compared to triangular pitch Gives a higher shell side pressure drop None of these Can pack more surface area into a shell of given diameter Gives a lower shell side pressure drop Gives a higher shell side pressure drop None of these Can pack more surface area into a shell of given diameter Gives a lower shell side pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The statement that "maximum wavelength of radiation is inversly proportional to the temperature" is __________ law. Stefan-Boltzman's None of these Planck's Wien's displacement Stefan-Boltzman's None of these Planck's Wien's displacement ANSWER DOWNLOAD EXAMIANS APP
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