Heat Transfer Which of the following is the most controlling factor for the rate of bubble detachment from the hot solid surface? Liquid viscosity Hot surface temperature Liquid density Interfacial tension Liquid viscosity Hot surface temperature Liquid density Interfacial tension ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat exchangers operating, when the asymptotic range is reached, Results in making part of the heating surface inactive Results in abruptly increased velocity None of these Provide very large heat transfer co-efficient Results in making part of the heating surface inactive Results in abruptly increased velocity None of these Provide very large heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a vertical tube evaporator, with increase in the liquor level, the __________ is increased. Neither A and B Liquor-film co-efficient Both A and B Velocity of circulation Neither A and B Liquor-film co-efficient Both A and B Velocity of circulation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is concerned with both heat and mass transfer ? Nusselt number Kutateladze number Froude number Lewis relationship Nusselt number Kutateladze number Froude number Lewis relationship ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Rate of crystallisation does not depend upon the Extent of supersaturation Turbulence within the solution Number and active surface area of the crystals None of these Extent of supersaturation Turbulence within the solution Number and active surface area of the crystals None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In the free convection regime of pool boiling, the heat flux is proportional to Δt5/4 Δt1/2 Δt Δt2 Δt5/4 Δt1/2 Δt Δt2 ANSWER DOWNLOAD EXAMIANS APP
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