Q. If the reflux increases ________ increases in the fractionator.

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Q. Total cost is

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Q. At optimum reflux ratio,

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Q. Total cost will be minimum at

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Q. Estimate the fixed cost if the operational cost is 7 lakhs and the total cost is 15 lakhs.

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Q. Estimate the operational cost if the fixed cost is 15 lakhs.
(Hint: reflux ratio= optimum)

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Q. Which of the following reboiler is considering as an additional tray?

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Q. The internal reboilers are preferred for maintaining the economy of an industry.

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Q. The vertical-syphon reboilers are not preferred because of

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Q. Jacketed kettle is preferred for kettle type reboiler.

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Q. The reboiler which is most preferred is

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Q. Condenser or reboiler is consider as a trays or stage in a fractionator.

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Q. The fuel fired furnace is preferred for high boiling point.

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Q. Most reboilers are

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Q. At what feed condition the slope of q line is infinity?

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Q. Find the feed condition from the below distribution curve.

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Q. In an operation the slope of the q-line is found to be 0; then the enthalpy of feed equals enthalpy of _____________

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Q. Consider a saturated liquid-vapour mixture, if the liquid flow rate inside the enriching and the stripping section of a fractionator is 50 and 40 mol/hr. Also the feed rate is 10 mol/hr. Find the feed condition.

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Q. At what feed condition the slope of the flash vaporization line becomes 0?

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Q. The point where the operating line and the equilibrium line meets in distillation methods is known as

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