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Calculate the Sphericity of Rasching Ring of Dimensions L=D0 and Di=0.5D0
A material is crushed in a jaw crusher and the average size of the particle is reduced from 5 cm to 1 cm with consumption of energy at the rate of 1.32*10⁴ J/kg. What will be the consumption of energy necessary to crush the same material of average size 7.5 cm to an average size 2.5 cm? The mechanical efficiency remains same. (a) Using Rittinger's law; (b) using Kick's law
Explain: “For efficient grinding, ball mills must be operated at a speed less than the critical speed.”
Draw neat sketch of an agitated vessel and label the important parts. What are the various methods for prevention of swirling in an agitated vessel?
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?
Describe batch sedimentation process with a graph. Describe a continuous gravity thickener.
In a filter press, at a constant pressure difference of 3.0 kg/cm² , a 12cm cake is formed in one hour with a filtrate volume of 5400 liters. Washing proceeds exactly as filtration using 900 liters. All other operation takes 11 minutes time. Assume the filtrate has same properties of wash water. The rate of washing is 0.20 times the final filtration rate. Calculate the volume of filtrate produced in one day of operation.
What rotational speed in RPM would you recommend for a ball mill 1200 mm in diameter charged with 75 mm balls?
With neat sketch, explain pneumatic conveying system with advantages and disadvantages.
What are the different types of conveyers? Explain in detail the screw conveyer with its industrial applications.
Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.
BE Chemical
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Official Gujarat Technological University (GTU) examination paper for Mechanical Operations (Summer 2025, 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.
3150502 Mechanical Operations
Official GTU PDF · Summer 2025
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