Fundamentals of Mechanical Engineering (BME101) AKTU previous year questions 2022–2026
Every Fundamentals of Mechanical Engineering question from 9 AKTU papers, tagged by unit, topic and marks. A few recent questions from each unit are listed below; open the page to filter by unit, topic or mark type.
Unit 1: Introduction to Mechanics – AKTU PYQs
- What is the difference between a moment and a couple? (2 marks, 2026, Force Moment and Couple)
- Difference between true strain and engineering strain. (2 marks, 2026, Stress and Strain Fundamentals)
- Find the resultant of forces 2, √3, 5, √3 & 2N that act at an angular point of regular hexagon towards the other angular point taking in an order. (7 marks, 2026, Resultant of Force Systems)
- Determine the reaction at the support A and D in the structure shown in Figure. (7 marks, 2026, Supports Loads and Reactions)
- A beam 8m long is hinged at A and supported on rollers over a smooth surface inclined at 30°C to the horizontal at B. The beam is loaded as shown in fig. Determine the support reaction. (7 marks, 2026, Supports Loads and Reactions)
Unit 2: Introduction to IC Engines and Electric Vehicles – AKTU PYQs
- What do you mean by scavenging? (2 marks, 2026, Two Stroke and Four Stroke Engines)
- What is a Hybrid Electric Vehicle (HEV)? Describe the drive train components of an HEV and explain how energy is managed and transferred between the engine and electric motor. (7 marks, 2026, Hybrid Electric Vehicles)
- Explain the construction and working principle of a 4-Stroke Diesel engine also draw the Pressure (P)-Volume(V) & Temperature (T) -Entropy (S) diagram with a neat diagram. (7 marks, 2026, Two Stroke and Four Stroke Engines)
- Explain any seven differences between a spark-ignition (SI) engine and compression-ignition (CI) engine with the help of a Pressure-Volume (P-V) and Temperature-Entropy (T-S) diagram. (7 marks, 2026, Two Stroke and Four Stroke Engines)
- Comparison of electric vehicles with conventional engine-based vehicles. (2 marks, 2025, Electric Vehicles)
Unit 3: Introduction to Refrigeration and Air-Conditioning – AKTU PYQs
- Write down any two differences between efficiency and COP. (2 marks, 2026, Refrigeration Fundamentals)
- What are the factors affecting the performance of a domestic refrigerator? Discuss methods to improve or optimize its performance. (7 marks, 2026, Domestic Refrigerator and Heat Pump)
- A Carnot refrigerator operates between temperatures of –5°C and 35°C. If the refrigerator requires 3 kW of power input, determine: (i) Coefficient of Performance (COP) (ii) Refrigeration capacity in tons (7 marks, 2026, Refrigeration Fundamentals)
- It is proposed to heat a house using a heat pump outside air at 0°C is used as the heat source. Inside temperature of house is maintained at 30°C. The heating load estimated as 205600 KJ/hrs. Calculate the minimum power to drive the heat pump. (7 marks, 2026, Domestic Refrigerator and Heat Pump)
- Drive the expression for the coefficient of performance in refrigeration? (2 marks, 2025, Refrigeration Fundamentals)
Unit 4: Introduction to Fluid Mechanics and Applications – AKTU PYQs
- A liquid has a density of 850 kg/m³. Calculate its specific gravity. (2 marks, 2026, Fluid Properties)
- Define the term priming in the pump. (2 marks, 2026, Hydraulic Pumps)
- Draw the diagram and explain the working of a suspended hydraulic lift. (7 marks, 2026, Hydraulic Pumps)
- A pipe of diameter 55 cm carrying water at an average velocity of 5 m/s branches into two pipes of diameters 40 cm and 30 cm. Find the discharge in the main pipe and the velocity in the 30 cm diameter pipe, given that the velocity in the 40 cm pipe is 5 m/s. (7 marks, 2026, Fluid Properties)
- Explain the construction working principle of the Pelton wheel turbine with a neat sketch. (7 marks, 2026, Hydraulic Turbines)
Unit 5: Introduction to Measurement and Mechatronics – AKTU PYQs
- Write the application of the mechatronics? (2 marks, 2026, Mechatronics Systems Overview)
- Explain the construction and working of Bourdan Tube with neat diagram for measuring the pressure. (7 marks, 2026, Measurement Instruments)
- Explain the construction working of an optical pyrometer with a neat labeled sketch. (7 marks, 2026, Measurement Instruments)
- Define the term 'Mechatronics' and explain. Also, write the advantages and disadvantages of mechatronics. (7 marks, 2026, Mechatronics Systems Overview)
- Enlist three temperature measuring instruments (2 marks, 2025, Measurement Instruments)