Distillation Design Questions and Answers – Analytical X-Y Diagram -Smoker’s Equation

This set of Distillation Design Assessment Questions and Answers focuses on “Analytical X-Y Diagram -Smoker’s Equation”.

1. Smoker proposed an analytical closed form formula, to calculate
a) Reflux ratio
b) Number of trays
c) Number of stages
d) Number of feeds
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2. The analytical formula fails to predict the
a) Equilibrium Stages
b) Reflux ratio
c) Feed inlet and outlet
d) Boil up
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3. In the below diagram, the minimum reflux can be seen as ______ using smoker’s equation.

a) 1.567
b) 1.425
c) 1.2
d) Can’t be specified
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4. Smoker’s equation is convenient to use, in binary separations with
a) Large number of stages
b) Small number of stages
c) Independent stages
d) Dependent stages
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5. Smoker’s equation is based on assumption?
a) Constant molar overflow and volatility
b) Constant Molar overflow and viscosity
c) Constant feed and stages
d) Constant Pressure
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6. If N_R is 5.44 and N_S is 3.42. Total stages are
a) 2.02
b) 1.8
c) 8.86
d) 1.59
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7. According to smoker’s equation, b is given as
a) R+1
b) x_D/R+1
c) x_D/y
d) y/R+1
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8. According to smoker’s equation, C is given as
a) 1 + (α -1) k
b) 1 -(α -1)k
c) 1 -(α +1)k
d) α -1
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9. Calculate b? If x_D= 0.95 and R=8
a) 0.445
b) 0.118
c) 0.2375
d) 0.568
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10. If reflux ratio is 3, then slope m is estimated as
a) 0.75
b) 1
c) 0.66
d) 0.90
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Sanfoundry Global Education & Learning Series – Distillation Design.
To practice all areas of Distillation Design Assessment Questions, here is complete set of 1000+ Multiple Choice Questions and Answers.

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