M.Sc. (Semester III) (CBCS) Examination Mar/Apr-2018
Industrial Chemistry
UNIT OPERATIONS OF CHEMICAL ENGINEERING
Time: 2½ Hours
Max. Marks: 70
Instructions: Attempt in all five questions. Section I is compulsory. Attempt any two questions from section II and two questions from section III Answer to all questions (section II, III) should be written in the one answer book. All questions carry equal marks. Figures to the right indicate full marks.
Section I
Q.1
Answer the following:
14
What is leaching?
What is constant pressure filtration?
On what principle does the Ball mill achieve size reduction of a solid?
Which qualities do a filter aids should possess?
What are the disadvantages of vertical tube evaporator?
What are the methods of increasing the economy of Evaporation Process?
What is meant by Hygroscopicity?
What are the different types of screening equipments used in industry?
What is meant by Bubble point?
10) What is meant by flooding in extraction column?
11) What are the advantages of Rotary drum filter?
12) What is the primary condition for crystallization process?
13) What are the applications of Tunnel dryer?
14) What is the use Tube Sheet in heat exchanger?
Section II
Q.2
What is meant by Miscella? Explain in detail the working of Dorr agitator and thickener?
07
What is the principle of cyclone separator? Explain the working of Electrostatic Dust Precipitator?
07
Q.3
Describe in detail the working of Bubble cap, and sieve plate and valve plate column used in Distillation.
07
What is crystal growth? Discuss the methods of supersaturation.
07
Q.4
Discuss in detail Multiple effect Evaporator.
07
Explain the principle, construction and working of Blake Jaw crusher.
07
Page 2 of 2
SLR-UF-174
Section III
Q.5
Explain in detail the Fixed tube sheet 1-2 heat exchanger.
05
What is Azeotropes? Discuss the azeotropic distillation.
05
Explain in detail Horizontal tube evaporator.
04
Q.6
Explain in details the working of Rotary Dryer.
05
What are the different turbines used in Agitated vessel?
05
How does Packed tower used in extraction?
04
Q.7
Write short on any three of the following.
14
Filter aids
Batch plant for extraction of oil
Mixer settler in liquid liquid extraction
Agitated tank crystallizer