Fundamentals of Mechanical Engineering Unit 4 – Introduction to Fluid Mechanics and Applications: important questions for AKTU
Unit 4 (Introduction to Fluid Mechanics and Applications) questions that AKTU repeats most often. This unit carries about 27 marks per paper. Start with the repeated questions, then the most asked topics.
Most repeated Unit 4 questions
- Explain the construction working principle of the Pelton wheel turbine with a neat sketch. (7 marks, 2026, Hydraulic Turbines) – also asked in 2022, 2023, 2024, 2025
- What are hydraulic turbines? How are they classified? Write their advantages and disadvantages? (10 marks, 2021, Hydraulic Turbines) – also asked in 2022, 2023, 2024, 2025, 2026
- Draw the schematic arrangement of a Pelton wheel turbine and state the applications. (7 marks, 2025, Hydraulic Turbines) – also asked in 2022, 2023, 2024, 2026
Most important Unit 4 topic
- Fluid Properties (Unit 4: Introduction to Fluid Mechanics and Applications) – asked 29 times in 2021, 2022, 2023, 2024, 2025, 2026
Most asked Unit 4 topics
- Fluid Properties – asked 29 times
- Hydraulic Turbines – asked 16 times
- Hydraulic Pumps – asked 3 times
More Unit 4 previous year questions
- 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)
- What are the Newtonian and Non-Newtonian fluids? (2 marks, 2025, Fluid Properties)
Unit 4 syllabus topics
- Fluid Properties
- Hydraulic Turbines
- Hydraulic Pumps