UPSC Optional · 500 marks

Mechanical Engineering

Mechanics, thermodynamics, machine design, manufacturing, IC engines.

Five deep-dives: syllabus, booklist, paper analysis, strategy, PYQ trends (2021–2025).

Mechanical Engineering Guides

Five long-form articles. Read in order or jump to what you need.

What UPSC actually asked in Mechanical Engineering, 2021–2025

80 questions across 5 years, taken from the official papers. Every one has its own page with the directive word, marks, word limit and evaluation rubric.

Paper 1
40 questions · 2000 marks total
Paper 2
40 questions · 2000 marks total

Topics that came up

Heat transfer and thermodynamics · Manufacturing processes and industrial engineering · Thermodynamics and IC Engines · Thermodynamics, Heat Transfer and Fluid Mechanics · Advanced manufacturing processes and plant layout · Automobile braking, annealing, balancing of rotating masses · Bending moment diagrams, stress analysis, cast iron types · Compressible flow, heat transfer and thermal radiation

Directive words used most

calculate (43) · solve (24) · explain (5) · derive (4) · prove (2) — see the directive words guide for how each one changes the answer you should write.

Mark distribution

80 questions at 50 marks

Browse all 80 Mechanical Engineering previous year questions →

Practice Mechanical Engineering answers, get AI feedback

Write an answer, upload it, and our evaluator scores it on content, structure, examples and directive-word fidelity — trained on UPSC-style marking.