Download SGBAU B-Tech 4th Sem Chemical Engineering Chemical Engineering Operations I Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) B-Tech/BE (Bachelor of Technology) 4th Sem Chemical Engineering Chemical Engineering Operations I Previous Question Paper

10995: Chemical Engineering Operations-I (Mechanical Operations): 4 CH 05
P. Pages :
B. Tech. Fourth Semester (Chemical Engineering) (CGS)
2 U AW - 3068
Time : Three Hours lm?l?m?, (W! Max. Marks : 80
l.
8"
Notes :
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AW - 3068 l P.T.O
1 Answer three question from Section A and three question from Section B.
2 Due credit will be given to neatncss and adequate dimensions.
3 Assume suitable data wherever necessary.
4. Diagrams and chemicals equations should be given wherever necessary.
5. Illustrate your answer necessary with the help of neat sketches.
6 Discuss the reaction. mechanism wherever necessary.
7 Cell phone is not allowed.
8 Use of pen Blue/Black ink/re?ll only for writing the answer book.
SECTION - A
Explain the following laws of size reduction:-
i) Rittinger's law ii) Kick law
iii) Bond's law and work Index.
Explain in detail the capacity and effectiveness of screen.
0R
Explain in detail the principle, construction and working of blake Jaw crusher with the
help of neat sketch diagram.
Calculate the operating speed of ball mill from the following data:-
i) Diameter of ball mill = 800 mm
ii) Diameter of ball = 60 mm
If 1) Operating speed is 55% less than critical speed
2) Critical speed is 40% more than operating speed.
Explain in detail the principle, construction and working mechanism of double cone
classi?er with the help of neat sketch diagram.
What should be the settling velocity of a spherical particle of 0.4 mm diameter in an oil of
25:. 273V $082316; vi eesity 10'3 Nsimz . The Speci?c- gravity ofsteel is 7.87.
v
SpCCil
0R
Discuss in detail the calculation of area of continuous thickner from a simple batch test by
Kynch method.
Explain the construction and working ot?continuous thickner. Also give the various zones
in continuous thickner.
Explain the construction and working of belt convey or with the help of followings:-
i) Belt material ii) Belt Drive Arrangement
iii) Material feeding and discharge mangement

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Discuss the properties and signi?cance of followings with the help of neat sketch
diagram:-
i) Impeller ii?l Paddles iii) Turbines
OR
De?ne the term 'Mixing Index? and Degree ot'mixing. Explain the construction and
working of Banbury mixer.
What is the principle of operation of screw conveyor? Discuss the relative merits and
demerits of screw conveyori
SECTION - B
W?iat are the various factors to be considered while selecting the ?lter media? Discuss the
compressible and incompressible cake.
What are pressure ?lters? Discuss the advantages and disadvantages of plate and frame
?lter press.
OR
What is the principle of ?ltration? Derive the equation for constant rate and constant
pressure ?ltration.
Explain in detail the construction and working of rotary drum filter with the help of neat
5k etch diagram.
Explain the principle, construction and working of Hydroclone.
Discuss the construction. working and calculation ot?magnitude, pressure and stress
developed in centrifuge.
OR
A centrifuge m'th phosphor bronze basket 375 mm diameter is to be run at 60 Hz vn?th a
75mm layer of liquid of speci?c gravity 1.2 in the basket. What thickness of walls is
required in the basket.
Density of phosphor bronze = 8900 kg?m3.
Maximum safe working stress for phosphor bronze = 55 MN/mz.
Criticaily compare eeritril'tigaiiun with sedimentatioii.
De?ne the term 'Adsorption' Explain the characteristics of good adsorbents and their
applications on commercial level with the help of suitable examples.
Derive the Langmuir and Freundlich equation for adsorption isotherm.
0R
Explain the adsorption in fixed bed and ?uidized bed with application.
Discuss the thermal and pressure swing adsorption.
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AW - 3068 2
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