Mechanical Technology 91 Question Paper Exclusive __hot__ -

Based on curriculum standards for this level, the question paper is likely to cover the following key areas: MECHANICAL TECHNOL OGY - Department of Basic Education

(Include 15 more calculation-style questions covering statics, dynamics, power transmission, simple machine design, hydraulics, pneumatics, and material heat treatment.) mechanical technology 91 question paper exclusive

Advances to complex Engineering Drawing, Metal Joining Processes, Sheet Metal Work, and Material Removal Processes. Based on curriculum standards for this level, the

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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 .

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).