Heat Transfer Value of Nusselt number [Nu = (hD/k)] for the heat transfer by conduction from a droplet or a spherical particle to a surrounding stagnant film is 0.5 100 10 2 0.5 100 10 2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. Remain unchanged May increase or decrease; depends on the pressure Decrease Increase Remain unchanged May increase or decrease; depends on the pressure Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides Lower economy Both A & B Lower capacity Higher economy Lower economy Both A & B Lower capacity Higher economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In sub-cooled boiling, Temperature of the heating surface is less than the boiling point of the liquid Very large vapour space is necessary Temperature of the heating surface is more than the boiling point of the liquid Bubbles from heating surface are absorbed by the mass of the liquid Temperature of the heating surface is less than the boiling point of the liquid Very large vapour space is necessary Temperature of the heating surface is more than the boiling point of the liquid Bubbles from heating surface are absorbed by the mass of the liquid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around __________ metres/second. 1 10 30 20 1 10 30 20 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the Average of all resistances Maximum resistance in the series Minimum resistance presents in the series Sum of all resistances Average of all resistances Maximum resistance in the series Minimum resistance presents in the series Sum of all resistances ANSWER DOWNLOAD EXAMIANS APP
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