BT-203 RGPV B.Tech
Basic Mechanical Engineering (BME)
Previous year papers and the official syllabus are free to read, no account needed.
Previous Year Papers
8 papers, latest Dec 2025
- BT-203 paper, Dec 2025
- BT-203 paper, Jun 2025
- BT-203 paper, Dec 2024
- BT-203 paper, Jun 2024
- BT-203 paper, Dec 2023
- BT-203 paper, Jun 2023
Syllabus, notes and important questions for BT-203
Syllabus units
Topics as the official RGPV syllabus lists them.
Unit 1 Materials 5 topics
- Classification of engineering materials and composition of cast iron and carbon steels
- Iron‑Carbon diagram and applications of alloy steels
- Mechanical properties: strength, hardness, toughness, ductility, brittleness, malleability
- Tensile test – stress‑strain diagram for ductile and brittle materials
- Hooke’s law, modulus of elasticity, hardness and impact testing (BHN, etc.)
Unit 2 Measurement 4 topics
- Concepts of measurement and sources of errors
- Measurement of temperature, pressure, velocity, flow strain, force and torque
- Use of Vernier caliper, micrometer, dial gauge, slip gauge, sine‑bar and combination set
- Production engineering basics: casting, carpentry, welding, introduction to lathe and drilling machines
Unit 3 Fluids 4 topics
- Fluid properties: pressure, density, viscosity
- Newton’s law of viscosity and Pascal’s law
- Bernoulli’s equation for incompressible fluids
- Working principles of hydraulic machines, pumps, turbines, and reciprocating pumps
Unit 4 Thermodynamics 4 topics
- Thermodynamic system, properties, state, and processes
- Zeroth, First and Second laws of thermodynamics
- Thermodynamic processes at constant pressure, volume, enthalpy and entropy
- Steam engineering: classification and working of boilers, mountings, accessories, efficiency, natural and artificial draught, steam properties and use of steam tables
Unit 5 Reciprocating Machines 3 topics
- Working principle of steam engine and compressors
- Carnot, Otto, Diesel and Dual cycles – P‑V and T‑S diagrams and efficiencies
- Two‑stroke and four‑stroke petrol and diesel engine operation
Exam insights
Counted from 6 past BT-203 papers.
Marks asked per paper, by unit
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Unit 1 Materials 25 marks
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Unit 2 Measurement & Production Engineering 26 marks
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Unit 3 Fluids 24 marks
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Unit 4 Thermodynamics & Steam Engineering 21 marks
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Unit 5 Reciprocating Machines 15 marks
Average marks of the questions from each unit in one paper. You answer only some of them, so the total is more than the paper’s maximum.
Asked again and again
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Explain the classification of engineering materials, including what alloys are and their applications.
Asked 3 times: 2025, 2024, 2022
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Define important mechanical properties of engineering materials (e.g., strength, ductility, toughness, brittleness, tensile strength) with examples.
Asked 3 times: 2025, 2023, 2022
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Explain the tensile test procedure / experimental setup and the stress-strain diagram for ductile materials (including comparison with brittle materials) with neat sketch
Asked 3 times: 2025, 2023, 2022