What is the exam pattern and passing mark for GTU Mechanical Operations (3150502)?

The GTU theory examination carries 70 total marks with a duration of 2.5 Hours. Minimum passing criteria is 23 marks (33%). The paper consists of 5 main questions with official marking breakdown and internal choices.

Where can I download the official GTU 3150502 Winter 2023 question paper PDF?

The official GTU question paper PDF is linked directly from Gujarat Technological University's official examination archive. You can view the full paper online or download the original file.

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Gujarat Technological UniversityWinter 2023 examination

GTU 3150502 Mechanical Operations Winter 2023 Question Paper & PDF

B.E. · Chemical Engineering · Semester 5 · Subject code 3150502

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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.1

14 Marks

(a)

3 marks

Define volume surface mean diameter, volume mean diameter, mass mean diameter and arithmetic mean diameter.

(b)

4 marks

Define sphericity. Find the sphericity cylinder having D=H.

(c)

7 marks

Develop the equation for the calculation of effectiveness of the screen.

Q.2

14 Marks

(a)

3 marks

Differentiate the Crusher and grinder

(b)

4 marks

A set of crushing rolls of 1000 mm diameter by 375 mm width of face. Minimum spacing between two rolls is 12 mm and the angle of nip is 30. What is the maximum permissible size of feed?

(c)

7 marks

Classify comminuting equipment and give suitable industrial application of it.

(c)

7 marks

A Black jaw crusher is used for crushing limestone such that the average size of the particles is reduced from 50mm to 10 mm with energy consumption of 50 W*hr/metric ton. Calculate the energy consumption for crushing the same material from average size of 75mm to 20mm. (a) Using Rittinger's law; (b) using Kick's law (c) Bond’s law. Work index=12.74.

Q.3

14 Marks

(a)

3 marks

Discuss various mechanism of filtration in brief.

(b)

4 marks

Classify the Filtration equipments with examples in each category.

(c)

7 marks

Explain construction and working of continuous plate and frame filter press.

(a)

3 marks

Differentiate clarifier and classifier.

(b)

4 marks

Explain construction and working of the cyclones separator.

(c)

7 marks

Explain in detail the working of batch sedimentation with application.

Q.4

14 Marks

(a)

3 marks

Write down purpose of agitation

(b)

4 marks

Write short note on tumbler mixer.

(c)

7 marks

Describe the different mixing equipments used for solid mixing in brief.

(a)

3 marks

What is power number and give its significance.

(b)

4 marks

Write short note on equipment used for non-cohesive solid mixing

(c)

7 marks

Explain different types of impellers for agitation of liquids along with application.

Q.5

14 Marks

(a)

3 marks

Enlist the industrial application fluidization.

(b)

4 marks

Discuss minimum fluidization velocity and pressure drop in fluidized bed with neat sketch.

(c)

7 marks

With neat sketch, explain pneumatic conveying system with advantages and disadvantages.

(a)

3 marks

List different types of industrial conveyers.

(b)

4 marks

Discuss the different criteria’s for selection of conveyors.

(c)

7 marks

Explain in detail: Types of fluidization.

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Other Semester 5 subjects

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About this paper

Official Gujarat Technological University (GTU) examination paper for Mechanical Operations (Winter 2023, 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.

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