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Chemical Engineering Exam  >  Chemical Engineering Tests  >  Test: Reflux Ratio(Minimum, Maximum And Optimum) - Chemical Engineering MCQ

Test: Reflux Ratio(Minimum, Maximum And Optimum) - Chemical Engineering MCQ


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10 Questions MCQ Test - Test: Reflux Ratio(Minimum, Maximum And Optimum)

Test: Reflux Ratio(Minimum, Maximum And Optimum) for Chemical Engineering 2024 is part of Chemical Engineering preparation. The Test: Reflux Ratio(Minimum, Maximum And Optimum) questions and answers have been prepared according to the Chemical Engineering exam syllabus.The Test: Reflux Ratio(Minimum, Maximum And Optimum) MCQs are made for Chemical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Reflux Ratio(Minimum, Maximum And Optimum) below.
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Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 1
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 If the reflux is total, minimum stages are used.

Detailed Solution for Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 1

Explanation: For total reflux no distillate formation; all the condensed vapour are sent back to fractionator.

Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 2
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At Total reflux

Detailed Solution for Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 2

Explanation: Total reflux there condensed vapours are sent back to column itself.

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Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 3
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Reflux ratio is infinity at

Detailed Solution for Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 3

Explanation: Reflux ratio becomes infinity at distillate is equals to zero. Since reflux ratio = Reflux/distillate
At distillate = 0; Reflux ratio= infinity.

Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 4
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 Estimate the condenser requirement for total reflux.
Detailed Solution for Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 4

Explanation: Since if the large condenser are used, vapour gets condensed and becomes reflux where distillate is zero.

Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 5
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 For minimum reflux ratio the number of trays becomes infinite.
Detailed Solution for Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 5

Explanation: For minimum reflux ratio, all the condensed vapour becomes distillate; no reflux. So it requires infinite number of trays.

Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 6
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For a minimum reflux ratio ________ condenser or reboiler loads are used.
Detailed Solution for Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 6

Explanation: Since for minimum reflux ratio no reflux is produced, it’s enough to use minimum load condenser or reboiler.

Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 7
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Find the representation X.
Detailed Solution for Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 7

Explanation: All the condensed vapours are refluxed (no distillate).

Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 8
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For finding the exact number of trays the reflux ratio should be between minimum and infinity.
Detailed Solution for Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 8

Explanation: The minimum trays cannot be determined; also infinite trays are impossible; so the trays should be minimum and infinity.

Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 9
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The reflux ratio increases by increasing the reflux and decreasing the distillate.
Detailed Solution for Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 9

Explanation: Reflux ratio= reflux/distillate.

Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 10
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Find the co-relation of the representation.
Detailed Solution for Test: Reflux Ratio(Minimum, Maximum And Optimum) - Question 10

Explanation: Since there is no reflux, all the condensed vapours are distillate. Then it represents minimum reflux ratio.

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