Heat Transfer Absorptivity and refletivity of a perfect black body are respectively 1 and ? 1 and 0 0 and 1 0 and 0.5 1 and ? 1 and 0 0 and 1 0 and 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Reynold's analogy states that (where, St = Stanton number f = friction factor) St = f/2 St = 4f St = f1/2 St = f/4 St = f/2 St = 4f St = f1/2 St = f/4 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The ratio of velocity head to tube side return loss in case of a multipass shell and tube heat exchanger is 4 2 43832 43834 4 2 43832 43834 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Fourier's law, the proportionality constant is called the Thermal diffusivity Thermal conductivity Heat transfer co-efficient Stefan-Boltzman constant Thermal diffusivity Thermal conductivity Heat transfer co-efficient Stefan-Boltzman constant ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Trap is used to remove __________ from steam pipe lines. Steam None of these Condensate Non-condensables Steam None of these Condensate Non-condensables ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A steel sphere of radius 0.1 m at 400°K is immersed in an oil at 300°K. If the centre of the sphere reaches 350°K in 20 minutes, how long will it take for a 0.05 m radius steel sphere to reach the same temperature (at the centre) under identical conditions ? Assume that the conductive heat transfer co-efficient is infinitely large. 40 minutes 20 minutes 5 minutes 10 minutes 40 minutes 20 minutes 5 minutes 10 minutes ANSWER DOWNLOAD EXAMIANS APP
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