Heat Transfer Which of the following has the highest thermal conductivity ? Black Water Silver Air Black Water Silver Air ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Water always boils when its Saturated vapour pressure equals the external pressure on its surface Vapour pressure equals 76 cm of Hg Saturated vapour pressure is less than the atmospheric pressure Temperature reaches 100° C Saturated vapour pressure equals the external pressure on its surface Vapour pressure equals 76 cm of Hg Saturated vapour pressure is less than the atmospheric pressure Temperature reaches 100° C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Reynold's analogy states that (where, St = Stanton number f = friction factor) St = f/2 St = f/4 St = f1/2 St = 4f St = f/2 St = f/4 St = f1/2 St = 4f ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Use of transverse baffles in a shell and tube heat exchanger is done to increase the All of these Flow velocity Rate of heat transfer Turbulence of shell side fluid All of these Flow velocity Rate of heat transfer Turbulence of shell side fluid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A hollow sphere and a solid sphere of the same material and equal radii are heated to the same temperature. In this case, Both will absorb equal amount of radiation from the surrounding in the beginning Both the spheres will emit equal amount of radiation per unit time in the beginning Both B & C The cooling rate will be the same for the two spheres and hence the two spheres will have equal temperatures at any instant Both will absorb equal amount of radiation from the surrounding in the beginning Both the spheres will emit equal amount of radiation per unit time in the beginning Both B & C The cooling rate will be the same for the two spheres and hence the two spheres will have equal temperatures at any instant ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Viscosity of gases __________ with increase in temperature. Remain unaffected Decrease slowly Increase slowly Increase very rapidly Remain unaffected Decrease slowly Increase slowly Increase very rapidly ANSWER DOWNLOAD EXAMIANS APP
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