Heat Transfer Water always boils when its Saturated vapour pressure is less than the atmospheric pressure Vapour pressure equals 76 cm of Hg Temperature reaches 100° C Saturated vapour pressure equals the external pressure on its surface Saturated vapour pressure is less than the atmospheric pressure Vapour pressure equals 76 cm of Hg Temperature reaches 100° C Saturated vapour pressure equals the external pressure on its surface ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The energy radiated from a surface Q at absolute temperature T is related as Q ∝ T² Q ∝ T⁴ Q ∝ T³ None of these Q ∝ T² Q ∝ T⁴ Q ∝ T³ None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vacuum is generally maintained in the vapour space of an evaporator mainly to Concentrate heat sensitive materials Get economical temperature difference by using moderate pressure steam Facilitate forward feeding in multiple effect evaporation Achieve very high concentration of the final product Concentrate heat sensitive materials Get economical temperature difference by using moderate pressure steam Facilitate forward feeding in multiple effect evaporation Achieve very high concentration of the final product ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to Heat the water from 0°C to 100°C To superheat the steam Evaporate the water Data insufficient, can Heat the water from 0°C to 100°C To superheat the steam Evaporate the water Data insufficient, can ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Minimum recommended baffle spacing in a shell and tube heat exchanger is about (where, D = shell diameter) 0.2 D 0.3 D 0.4 D 0.5 D 0.2 D 0.3 D 0.4 D 0.5 D ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In an interphase heat transfer process, the equilibrium state corresponds to equality of temperature in the two phases, while the condition for equilibrium in an interphase mass transfer process is equality of Mass transfer co-efficients Activity co-efficients Concentrations Chemical potentials Mass transfer co-efficients Activity co-efficients Concentrations Chemical potentials ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS