1. The maps suitable for a sequence that includes homogeneous azeotropic distillation are classifies in:
a) 2 groups
b) 3 groups
c) 4 groups
d) 5 groups
Explanation: The maps suitable for a sequence that includes homogeneous azeotropic distillation are classifies in 5 groups.
2. In the residue-curve map, the lowest boiling component is at :
a) Bottom left vertex
b) Bottom right vertex
c) At the centroid
d) At the top vertex
Explanation: In the residue-curve map, the lowest boiling component is at the top vertex.
3. In the residue-curve map, the intermediate boiling component is at:
a) Bottom left vertex
b) Bottom right vertex
c) At the centroid
d) At the top vertex
Explanation: In the residue-curve map, the intermediate boiling component is at the bottom left vertex.
4. In the residue-curve map, the intermediate boiling component is at:
a) Bottom left vertex
b) Bottom right vertex
c) At the centroid
d) At the top vertex
Explanation: In the residue-curve map, the intermediate boiling component is at the bottom right vertex.
5. Sequences based on heterogeneous azeotropic mixtures are :
a) Common
b) Rare
c) Expensive
d) Inexpensive
Explanation: Sequences based on heterogeneous azeotropic mixtures are common.
6. Heterogeneous azeotropic distillation is carried out by ___________ process.
a) Batch
b) Continuous
c) Batch and continuous
d) Feed
Explanation: Earlier the process was batch now it is continuous.
7. The reflux flow is 400 moles/hr and distillate flow is 100moles/hr, what is the value of ϕ by lever rule?
a) 5
b) 4
c) 2.5
d) 1.2
Explanation: ϕ= Reflux flow/ distillate flow=400/100=4.
8. The reflux flow is 250 moles/hr and distillate flow is 100moles/hr, what is the value of ϕ by lever rule?
a) 5
b) 4
c) 2.5
d) 1.2
Explanation: ϕ= Reflux flow/ distillate flow=250/100=2.5.
9. The reflux flow is 240 moles/hr and distillate flow is 200moles/hr, what is the value of ϕ by lever rule?
a) 5
b) 4
c) 2.5
d) 1.2
Explanation:ϕ= Reflux flow/ distillate flow=240/200=2.5.
10. The reflux flow is 5000 moles/hr and distillate flow is 250moles/hr, what is the value of ϕ by lever rule?
a) 5
b) 40
c) 20
d) 1.2
Explanation: ϕ= Reflux flow/ distillate flow=5000/2500=20.