While we cannot host copyrighted material directly, most polytechnic archives and university digital libraries hold copies under the "Historical Examinations" section. Search for the reference code N2/91/MTech .
: Short notes on mechanical processes (e.g., "Explain the process of soldering").
Part B — Numerical & Problem Solving 11. A steel rod (E = 210 GPa) of length 2 m and cross-sectional area 500 mm² is loaded in tension with 20 kN. Calculate the elongation. 12. Calculate the moment of inertia of a rectangular section 100 mm × 50 mm about its centroidal horizontal axis. 13. A simply supported beam span 4 m carries a uniform load of 2 kN/m. Find the maximum bending moment. 14. Determine gear ratio if the driver has 20 teeth and the driven gear 60 teeth. 15. Convert 1200 rpm to rad/s. 16. A piston compresses air from 1 bar to 6 bar adiabatically with γ = 1.4. If initial volume is 0.02 m³, find final volume. 17. Calculate cutting speed (m/min) for a drill diameter 10 mm at 1200 rpm. 18. Find the stress concentration factor around a circular hole in a tension plate with given geometry (provide dimensions). 19. Compute the thermal expansion of a 1.5 m steel bar (α = 12 ×10^-6 /°C) for ΔT = 50°C. 20. Determine required torque to overcome friction for a screw with given lead and coefficient of friction (provide numbers). mechanical technology 91 question paper exclusive
Disclaimer: The structure provided is based on typical DVET Maharashtra patterns. Always verify with the latest official board curriculum. If you want, I can:
The is a critical tool for anyone looking to excel in mechanical engineering. By focusing on high-probability questions, covering essential subjects, and providing a comprehensive review of the field, it prepares you to handle any challenge on your examination day. Key Takeaways Focus on the 91 curated questions for maximum efficiency. While we cannot host copyrighted material directly, most
Modern question papers are predictable. The paper is notorious for its "twist" questions. Here are three unique features of this specific exam:
Focuses on Joining Processes-2 or Material Removal processes. (Typically "Answer any two"). Part B — Numerical & Problem Solving 11
Part C — Drawing, Interpretation & Design 26. Draw three orthographic views from the given isometric sketch (provide diagram). 27. Create a full-size detail drawing of a flange with dimensions and tolerances (specify dims). 28. Interpret an assembly drawing and list the components and fasteners required. 29. Sketch a key and keyway in an assembly and dimension it for a 30 mm shaft. 30. Provide a sectional view of a lubricated bearing housing with labeled parts. 31. Given a shaft-hub interference fit, suggest a suitable tolerance class and explain briefly. 32. Draw the shearing and bending force diagrams for a loaded cantilever beam. 33. Design a simple welded bracket to carry a 500 N load—show weld types and basic dimensions. 34–41. Eight short drawing/interpretation tasks (exploded view, bill of materials, surface finish symbols, GD&T callout, etc.)
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Questions here center on joining techniques, forces, and practical tools like the horizontal band saw. Practical and Analytical Demands