Q.1
14 Marks(a)
Define
i)Volume surface mean diameter
ii)Mesh Number
iii)Screening
(b)
Discuss various factors affecting on screening operation.
(c)
Describe various laws for size reduction and write principle of comminution.
Gujarat Technological UniversityWinter 2024 examination
GTU 3150502 Mechanical Operations Winter 2024 Question Paper & PDF
B.E. · Chemical Engineering · Semester 5 · Subject code 3150502
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 10:30 AM – 1:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Define
i)Agitation
ii)mixing
iii)power index
(b)
Discuss types of impellers in details.
(c)
Define Sphericity. Calculate the sphericity of cube.
OR
(c)
Develop the equation for the calculation of effectiveness of the screen.
Q.3
14 Marks(a)
Differentiate between ideal screen and actual screen.
(b)
Explain: “For efficient grinding, ball mills must be operated at a speed less than the critical speed.”
(c)
Discuss minimum fluidization velocity and pressure drop in fluidized bed with neat sketch.
OR
(a)
Discuss various mechanism of filtration in brief.
(b)
Calculate the operating speed of the ball mill from the following data:
i)Diameter of ball mill = 500 mm
ii)Diameter of ball = 40 mm
iii)Operating speed is 50% of the critical speed of the mill.
(c)
List different types of industrial conveyers and explain any one in detail.
Q.4
14 Marks(a)
Enlist different types of flow pattern induced in an Agitated vessel contains liquid.
(b)
Derive the mathematical expression for constant rate filtration.
(c)
Explain the construction and working of trommels with the help of a neat sketch.
OR
(a)
Write short note on types of fluidization.
(b)
Differentiate between clarifier and classifier.
(c)
Explain double arm kneading mixture in detail with neat sketch.
Q.5
14 Marks(a)
Discuss Sink and float method.
(b)
Explain in details about slurry transport.
(c)
Explain construction and working of the Hydrocyclones separator.
OR
(a)
Define mixing index and its significance.
(b)
Discuss Industrial applications of fluidization.
(c)
With neat diagram explain construction and working of continuous rotary vacuum filter.
More Mechanical Operations papers
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Other Semester 5 subjects
BE Chemical
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About this paper
Official Gujarat Technological University (GTU) examination paper for Mechanical Operations (Winter 2024, B.E. · Chemical Engineering, Sem 5). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.