Heat Transfer The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium. This is __________ law. Planck's Wien's displacement Stefan-Boltzman Kirchoffs Planck's Wien's displacement Stefan-Boltzman Kirchoffs ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The energy radiated from a surface Q at absolute temperature T is related as Q ∝ T³ None of these Q ∝ T⁴ Q ∝ T² Q ∝ T³ None of these Q ∝ T⁴ Q ∝ T² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer (NRe.NPr)(D/L) is called the __________ number Graetz Stanton None of these Peclet Graetz Stanton None of these Peclet 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 d2 d1.5 √d d d2 d1.5 √d ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the minimum thermal conductivity? Nitrogen Steel Carbon black Tar Nitrogen Steel Carbon black Tar ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Shell side pressure drop in a shell and tube heat exchanger does not depend upon the Viscosity, density & mass velocity of shell side fluid None of these Tube diameter & pitch Baffle spacing & shell diameter Viscosity, density & mass velocity of shell side fluid None of these Tube diameter & pitch Baffle spacing & shell diameter ANSWER DOWNLOAD EXAMIANS APP
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