Heat Transfer Which of the following is generally considered as opaque surface towards radiations? Liquids Gases Both solids & liquids Solids Liquids Gases Both solids & liquids Solids ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The range of electromagnetic spectrum important in heat transfer by radiation is __________ microns. 100-1000 5-50 0.5-50 0.38-0.78 100-1000 5-50 0.5-50 0.38-0.78 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer (NRe.NPr)(D/L) is called the __________ number Stanton Peclet None of these Graetz Stanton Peclet None of these Graetz ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Film condensation is promoted on a/an __________ surface. coated clean & smooth dirty oily coated clean & smooth dirty oily ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is the most controlling factor for the rate of bubble detachment from the hot solid surface? Hot surface temperature Interfacial tension Liquid viscosity Liquid density Hot surface temperature Interfacial tension Liquid viscosity Liquid density ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer According to Reynolds analogy, Stanton number is equal to (where, f = Fanning friction factor) f/2 f 2f f/4 f/2 f 2f f/4 ANSWER DOWNLOAD EXAMIANS APP
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