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First Year General
24 July 2026

๐Ÿ“– GTU BME Previous Year Questions (PYQs)

Previous Year Questions solve karke exam me confidence ke saath score karo. Important PYQs, Solutions aur Smart Exam Preparation sirf Student Sathidar par.

๐Ÿ“š BME Question Bank

All GTU Previous Year Questions ยท Student Sathidar

Module 1

๐Ÿ“– Fundamentals

Theory Define: Prime Mover, System, Boundary, Surroundings. W-19W-20S-24W-24

Theory Define: State, Path, Process, Cycle. W-20W-23

Theory State: Zeroth Law & First Law of Thermodynamics (Mathematical Form). W-21W-20W-24S-25

Theory Define: Specific Heat (Cp, Cv), Enthalpy, Internal Energy. W-22S-22S-25

Theory Thermodynamic Systems: Explain Open, Closed, and Isolated systems with neat sketches. Give examples. W-21S-20W-18W-24S-24S-25

Theory Energy Sources: Differentiate between Renewable and Non-Renewable energy sources. List examples. W-22S-24S-25W-24

Theory Global Warming & Ozone Depletion: Explain, list primary causes and impacts. W-21S-23W-20W-24S-25

Theory Gas Constant Relation: With usual notations, prove that Cp - Cv = R. W-21S-22S-25

Theory First Law: Write the mathematical statement of the First Law for a stationary closed system and explain the terms (Heat vs Work). S-25W-23

Module 2

๐Ÿ”ฅ Properties of Gases & Steam

Theory Define: Boyle's Law, Charles's Law, Gay-Lussac's Law, Avogadro's Law. W-20W-24

Theory Define: Dryness Fraction, Wet Steam, Superheated Steam, Critical Point. W-21W-22S-24W-24S-25

Theory Define: Sensible Heat, Latent Heat, Degree of Superheat, Enthalpy of Evaporation. S-22S-24W-24

Theory Steam Formation: Describe steam formation from water at 0ยฐC to superheated steam using a T-h diagram. W-21W-18W-24

Theory Processes: Explain Isothermal, Adiabatic, and Polytropic processes. Derive expressions for Work Done & Internal Energy. W-21S-22W-20S-24W-24S-25

Theory Calorimeters: Explain construction and working of Throttling Calorimeter. W-22S-25W-24

Num Gas Laws: Gas initially at specific P, V, T undergoes compression/expansion. Find Final Temp, Work Done, Change in Enthalpy/Internal Energy. S-23S-24W-24W-23S-25

Num Steam Properties: Calculate enthalpy, volume, entropy, and internal energy for wet/superheated steam given pressure and dryness fraction. S-23W-19W-24S-25

Num Calorimeter: Determine dryness fraction using Separating & Throttling calorimeter data.

Module 3

โšก Heat Engines & IC Engines

Theory Define: Heat Engine, Thermal Efficiency, Mechanical Efficiency. S-23S-25

Theory Define: Swept Volume, Clearance Volume, Compression Ratio (TDC/BDC). W-20S-24

Theory Define: Indicated Power, Brake Power, Specific Fuel Consumption. S-23S-24

Theory Otto Cycle: Derive Air Standard Efficiency of Otto Cycle. S-20W-22W-19W-23S-24W-24S-25

Theory Diesel Cycle: Derive Air Standard Efficiency of Diesel Cycle. S-25W-24S-24

Theory Rankine Cycle: Derive thermal efficiency and draw T-s diagram. W-18W-23W-24

Theory Carnot Cycle: State assumptions and limitations. W-24

Theory Comparisons: Two-Stroke vs Four-Stroke Engines • Petrol (SI) vs Diesel (CI) Engines. W-21W-24S-25

Theory Components: Function of Spark Plug, Injector, Piston Rings, Carburetor. W-23S-24S-25

Num Cycle Efficiency: Calculate efficiency for Otto/Diesel/Carnot cycles given temperatures or compression ratios. W-22S-24S-25

Num IC Engine Performance: Calculate BP, IP, Brake Thermal Efficiency, Fuel Consumption from trial data (Morse test/Rope brake). W-21W-22S-23W-23S-24W-24S-25

Module 4

๐Ÿซ– Boilers

Theory Classification: Fire Tube vs Water Tube boilers. W-22S-23W-19S-24S-25

Theory Cochran Boiler: Explain construction and working with neat sketch. W-22W-19W-24S-25

Theory Babcock & Wilcox Boiler: Explain construction and working with neat sketch. W-21S-22W-24S-25

Theory Lancashire Boiler: Explain construction and working. S-24

Theory Mountings & Accessories: Differentiate between Mountings and Accessories. W-24W-23

Theory Explain: Water Level Indicator, Fusible Plug, Safety Valve, Pressure Gauge. S-20W-24

Theory Explain: Economizer, Air Preheater, Superheater. S-20W-23S-24

Theory Requirements: List essential qualities of a good boiler. W-24S-25

Module 5

โš™๏ธ Compressors & Pumps

Theory Compressors: Differentiate Reciprocating vs Rotary Compressors. S-20S-25

Theory Explain: Centrifugal Compressor / Roots Blower. S-24

Theory Need for Multistaging in air compressors. W-18W-24

Theory Definitions: FAD, Swept Volume, Volumetric Efficiency. W-24

Theory Pumps: Centrifugal vs Reciprocating Pump. W-20W-23W-24

Theory Working of Centrifugal Pump. S-20W-24S-25

Theory Single Acting Reciprocating Pump working. S-25

Theory Priming: What is Priming? Why is it required in Centrifugal pumps? W-21W-22S-25W-24

Module 6

โ„๏ธ Refrigeration & Air Conditioning

Theory VCR Cycle: Explain Vapour Compression Refrigeration with schematic and charts. W-21W-22S-23S-25W-24

Theory VAR System: Explain Vapour Absorption Refrigeration system. W-23S-24S-25

Theory Air Conditioning: Working of Split AC • Window Room AC • Classification of AC systems. S-23W-20S-25W-24W-23

Theory Definitions: Refrigeration Effect, COP, Ton of Refrigeration (TR). W-24S-25

Module 7

๐Ÿ”— Couplings, Clutches & Brakes

Theory Difference: Clutch vs Brake vs Coupling. W-23S-24S-25

Theory Couplings: Rigid vs Flexible • Flange, Universal, Oldham's coupling. S-25S-24W-23

Theory Clutches: Single Plate Clutch • Centrifugal Clutch. S-25W-24

Theory Brakes: Internal Expanding Shoe Brake. W-22W-23W-24

Module 8

โš™๏ธ Transmission of Motion & Power

Theory Comparison: Compare Belt, Chain, and Gear Drive. W-21S-20W-23S-24W-24S-25

Theory Pulleys: Fast and Loose Pulley working. W-22W-23

Theory Gears: Applications of Helical, Worm, Rack & Pinion. W-24W-23

Module 9

๐Ÿงฑ Engineering Materials

Theory Definitions: Elasticity, Plasticity, Ductility, Hardness, Toughness, Brittleness, Fatigue. W-21W-22W-23S-24S-25

Theory Classification: Ferrous vs Non-Ferrous vs Non-Metallic Materials. W-21W-22W-24

Theory Specific Materials: Properties of Cast Iron • Non-metallic materials. W-23W-24

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