Heat Transfer The statement that "maximum wavelength of radiation is inversly proportional to the temperature" is __________ law. None of these Wien's displacement Planck's Stefan-Boltzman's None of these Wien's displacement Planck's Stefan-Boltzman's ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The non-dimensional temperature gradient in a liquid at the wall of a pipe is the Heat flux Schmidt number Prandtl number Nusselt number Heat flux Schmidt number Prandtl number Nusselt number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nucleate boiling is promoted On rough surfaces On polished surfaces None of these In the absence of agitation On rough surfaces On polished surfaces None of these In the absence of agitation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An insulator should have A porous structure Low thermal conductivity Less resistance to heat flow High thermal conductivity A porous structure Low thermal conductivity Less resistance to heat flow High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For turbulent flow in a tube, the heat transfer co-efficient is obtained from the Dittus-Boelter correlation. If the tube diameter is halved and the flow rate is doubled, then the heat transfer co-efficient will change by a factor of 1 37 1.74 6.1 1 37 1.74 6.1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivities of most of the liquids __________ with rise in temperature. Remains unchanged Increases May increase or decrease; depends on the liquid Decreases Remains unchanged Increases May increase or decrease; depends on the liquid Decreases ANSWER DOWNLOAD EXAMIANS APP
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