Download SGBAU B-Tech 4th Sem Poly Plast Chemical Engineering Operation I Question Paper

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

11104 : Chemical Engineering Operation-I (Mechanical Operation) : 4 PP 01
B.chh. Fourth Semester (Polymer (Plastic) Technology) (CGS)
AW - 3069 1 P.T.O
i) Belt material and construction.
ii) Belt Drive Arrangement.
iii) Material feeding and discharge arrangements.
P. Pages : 2 IHWIWIWMIIJ AW - 3069
Time : Three Hours .. o a 5 5 . Max. Marks : 80
Notes : 1. Al] question carry marks as indicated.
2. Answer three question from Section A and three question from Section B.
3. Due credit will be given to neatncss and adequate dimensions.
4. Assume suitable data wherever necessary. .
5. Diagrams and chemical equations should be given wherever necessary.
6. Illustrate your answer necessary with the help of neat sketches.
7. Use of pen Bluc/Black ink/re?ll only for writing the answer book.
SECTION - A
1 a) Explain the principle and working of a gyratory crusher with neat sketch. 8
b) Explain why Bond's law is more realistic than kick's law and Rittinger's law. 6
OR
2 a) De?ne work index and show that how it is related to the Bond's constant. What is the power 10
required to crush 100 Tons per hour of limestone, if 80% of the feed passes a two inch
screen and 80% of the product to 1/8 inch screen? Take 12.74 as work index for limestone.
b) Give one example of each equipment which work on following principles: - 4
i) Compression ii) Impact
iii) Attrition iv) Cutting
3 a) Explain the batch test for sedimentation. 7
b) Explain the principle of process of tabling in detail. 6
OR
4. a) What will be the settling velocity of a Spherical ball of 0.4mm in diameter in an oil of 7
speci?c gravity 0.82 md ?dscosily it?i?3 N ?5 'm: ? "lhc- speci?c gravity of steel is 8.00.
b) What are the various types of thickener? Discuss the various zones in continuous thickener. 6
5 a) Distinguish between mixing and agitation with example. 6
b) Discuss the construction and working of Banbury mixer. 7
0R
6. Describe the construction and working of belt conveyor with the help of following points:- 13

7. a)
b)
8. a)
b)
9. a)
b)
10. a)
b)
11. a)
b)
12. a)
b)
AW - 3069
SECTION - B
What is the principle 0t~ ?ltration? Derive the equation for constant rate and constant
pressure ?ltration.
Ex plain in detail construction and working of rotary drum ?lter. State its advantages and
disadvantages.
OR
Compare in detail the pressure ?lter with vacuum ?lter.
Ex plain the construction and workj ng of plate and frame ?lter press in detail with the help
of neat diagram.
Discuss the constmctimt. working and calculation of magnitude, pressure and stress
de veloped in centrifuge.
Explain the construction and working of cyclone separator.
0R
Explain the principle of scrubber.
A centrifuge m'th a phosphor-bronze basket 375mm diameter is to be run at 30112 with a
100mm layer of solids of bulk density IZOOOlcg?tzrt3 at the walls. What should be the
thickness of the walls of the basket if the perforations are so small that they have a negligible
effect on strength. Density of phosphor bronze = 8900kg/m3 Maximum safe stress for
phasphor-bronze = SSNN m2 .
Derive the Langmuir and Freundlich equation for adsorption isotherm.
Discuss the characteristics of good adsorbents and their application on commercial level.
0R
Explain the BET isothemt
Discuss the break through curve in adsorption.
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