Name of the College : Valliammai Engineering College
Subject : Applied Hydraulics and Pneumatics
Subject Code : ME2305
Website : valliammai.co.in
Document Type : Question Bank
Department : Mechanical Engineering
Semester : V
Degree : B.E
Question Bank : https://www.pdfquestion.in/uploads/valliammai.co.in/2838-ME2305-Applied%20Hydraulics%20and%20Pneumatics.pdf
Valliammai Applied Hydraulics & Pneumatics Question Paper
UNIT-I
HYDRAULICS – FLUID POWER SYSTEMS AND FUNDAMENTALS :
PART-A :
1. Define fluid power.
2. Differentiate hydraulic and pneumatics
Related : Valliammai Engineering College CC7101 Finite Element Applications in Manufacturing Engineering Question Bank : www.pdfquestion.in/2841.html
3. Define Pascal law.
4. What are the advantage and disadvantage of fluid power?
5. What is the function of hydraulic fluid?
6. What are the properties of hydraulic fluid?
7. Name the basic component of hydraulic systems.
8. Define pour point, flash point.
9. Define demulsibility.
10. Define neutralization number of hydraulic fluid
11. List the application of fluid power?
12. Define viscosity and viscosity index.
13. What is the effect in the hydraulic fluid when oil viscosity is too high?
14. What is the effect in the hydraulic fluid when oil viscosity is too low?
15. What is meant by the term bulk modulus?
16. List the three basic types of Fluid Power control systems.
17. What is the main difference between a open-loop and closed-loop fluid power system?
18. What is the purposed of Darcy – Weisbach equation?
19. List the three basic types of Fluid Power control systems.
20. Why are hydraulic systems preferred for heavy work than the pneumatic systems?
PART-B
1. Explain in details about the application of Pascal law with neat sketch.
2. Explain in details about the properties of hydraulic fluids.
3. Explain with neat sketch of the basic hydraulic system and its components.
4. What are the types of fluid power system and explain in detail?
5. Explain in details about the various losses in hydraulic fluid power systems?
6. Explain with neat sketch about graphical symbols used in hydraulic system and its function.
7. Write Short notes on the following i) Laminar flow and turbulent flow ii) Energy losses in values and fittings iii) Darcy’s Equation.
8. Explain with neat sketch about Fluid Power control systems.
9. Write short notes about types of fluids used in the fluid power systems.
10. Fluid is flowing through a tapering pipe having diameters 50mm and 25mm at sections 1 and 2 respectively. The discharge through the pipe is 7.5 LPS (litres per second). The section 1 is 3m above datum and section 2 is 1.25m above datum. If the pressure at section1 is 200 kpa, find the pressure at section2. The specific gravity of the fluid is 0.9.
UNIT-2
HYDRAULICS SYSTEMS AND COMPONENTS :
PART-A :
1. Define pump.
2. What is meant by positive and non-positive displacement pump?
3. What is meant by fixed displacement and variable displacement pump?
4. What is the classification pump?
5. What is meant by a balanced vane pump?
6. Define volumetric efficiency of a pump.
7. Define mechanical efficiency of a pump.
8. Define overall efficiency of a pump.
9. Draw the graphical symbols of the following pumps i) Fixed displacement iii) Pressure compensated ii) Variable displacement iv) Bidirectional
10. Define hydraulic actuator.
11. What are the types of hydraulic actuator?
12. Define motor.
13. What is semi-rotary actuator?
14. List the application of semi-rotary actuator?
15. What are the types of piston pump?
16. What are the types of gear pump?
17. What are the types of hydraulic cylinder?
18. What is cylinder cushioning?
19. What is telescoping cylinder
20. Name the types of cylinder mountings?
PART-B
1. Explain the working principle of external Gear pump and Internal Gear pump with neat sketch.
2. Explain the working principle of axial piston pumps with neat sketch?
3. What are the types of piston pump? Explain the working principle of radial piston pumps with neat sketch?
4. Explain the working principle of following pumps with neat sketch i) Lobe pump ii) Screw pump iii) Gerotor pump
5. Explain the working principle of unbalanced vane pumps and balanced vane pump with neat sketch?
6. Explain the working principle of Gear type motor with neat sketch.
7. Explain the working principle of piston type motor with neat sketch.
8. Explain the working principle semi-rotary actuator with neat sketch.
9. Explain the working principle following types of cylinders i) Single acting cylinder ii) Double acting cylinder iii) Cylinder Cushioning
10. Explain the working principle of different types of cylinders used in hydraulic system.