Heat Transfer Economy of a multiple effect evaporator is not influenced much by the rate of heat transfer temperature of the feed ratio of the weight of the thin liquor to thick liquor boiling point elevations rate of heat transfer temperature of the feed ratio of the weight of the thin liquor to thick liquor boiling point elevations ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fruit juice (a heat sensitive material) can be concentrated in a __________ evaporator. High pressure Falling film None of these Long tube High pressure Falling film None of these Long tube ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The film co-efficient is decreased due to the presence of non-condensing gases in the vapors. The film co-efficient of superheated vapor as compared to that of saturated vapor is Either more or less ; depends on the nature of vapor Some More Less Either more or less ; depends on the nature of vapor Some More Less ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For turbulent flow in a tube, the heat transfer co-efficient is obtained from the Dittus-Boelter correlation. If the tube diameter is halved and the flow rate is doubled, then the heat transfer co-efficient will change by a factor of 37 1.74 1 6.1 37 1.74 1 6.1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fouling factor Is a dimensionless quantity None of these Does not provide a safety factor for design Accounts for additional resistances to heat flow Is a dimensionless quantity None of these Does not provide a safety factor for design Accounts for additional resistances to heat flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporation is generally recommended, when the Corrosive liquids are to be concentrated Evaporation on small scale is to be done Fuel is cheaply available Large scale evaporation of liquor is needed Corrosive liquids are to be concentrated Evaporation on small scale is to be done Fuel is cheaply available Large scale evaporation of liquor is needed ANSWER DOWNLOAD EXAMIANS APP
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