Q.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
Q.2.
The analytical formula fails to predict the
- a) Equilibrium Stages
- b) Reflux ratio
- c) Feed inlet and outlet
- d) Boil up
Q.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
Q.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
Q.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
Q.6.
If NR is 5.and NS is 3.Total stages are
- a) 2.02
- b) 1.8
- c) 8.86
- d) 1.59
Q.7.
According to smoker’s equation, b is given as
- a) R+1
- b) xD/R+1
- c) xD/y
- d) y/R+1
Q.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
Q.9.
Calculate b? If xD= 0.and R=8
- a) 0.445
- b) 0.118
- c) 0.2375
- d) 0.568
Q.10.
If reflux ratio isthen slope m is estimated as
- a) 0.75
- b) 1
- c) 0.66
- d) 0.90