Q.1
Light non-keys end up as a
  • a) Final product
  • b) Feed outlet
  • c) Bottom end product
  • d) Overhead product
Q.2
Heavy non-keys end up as a
  • a) Final product
  • b) Feed outlet
  • c) Bottom end product
  • d) Overhead product
Q.3
The reflux ratio corresponding to the minimum total cost is called as
  • a) Optimum reflux ratio
  • b) Minimum reflux ratio
  • c) Final Ratio
  • d) Total Reflux Ratio
Q.4
The concentration of multi component mixture in mass transfer process, can be represented by
  • a) Mass concentration
  • b) Molar concentration
  • c) Molar density
  • d) Each quantity is important
Q.5
HETP is numerically equal to HTU, If and only if operating line
  • a) Lies below the equilibrium line
  • b) Lies above equilibrium line
  • c) At equilibrium line
  • d) Is far from equilibrium line
Q.6
In binary system, Separation is very efficient when relative volatility is
  • a) 1
  • b) >1
  • c) <1
  • d) Zero
Q.7
In batch distillation, with constant reflux overhead product composition
  • a) Increases with time
  • b) Decreases with time
  • c) Does not vary with time
  • d) Does vary with time
Q.8
Which of the following assumes constant molal vaporization and overflow?
  • a) McCabe Thiele method
  • b) Ponchan Savarit Method
  • c) Enthalpy concentration method
  • d) Plate absorption method
Q.9
The McCabe Thiele method
  • a) Uses molal units for material and energy balance
  • b) Uses weight fractions to express liquid and vapor composition
  • c) Can use any type of units
  • d) Is more accurate than ponchan savarit method
Q.10
If q is interpreted to be fraction of feed stream that is liquid, then for saturated liquid feed
  • a) q =0
  • b) q <0
  • c) q >l0
  • d) q =1
0 h : 0 m : 1 s