MS 9008 HYDRAULIC AND PNEUMATIC SYSTEM, Fifth year, Department of Mechanical Sandwich Engineering, Model Exam Questions

                                                             Answer ALL questions
PART A – (10×2=20 marks)
1.What is the fundamental difference between the hydraulics and pneumatic systems.
2.State pascal’s law.
3.What is pump ripple.
4What is meant by cylinder cushioning.
5.What are the functions of check valves.

6.What is meant by hydraulic power pack.
7.What is ladder diagram.
8.What is fluidics.
9.What is moody diagram? write its use.
10.What is the  functions of an unloading valve.
                                                                                                 
PART- B  (5×16=80 marks)

11.a  i) State the comparison of hydraulic and pneumatic systems.
         ii) Explain with neat sketch the cylinder cushioning.
OR
  b) i) Explain with neat sketch the DCV.
      ii) Explain with neat sketch the types of cylinder.

12. a i) What are the factors considering the selection of pump.
         ii) Explain the maintenance of hydraulic system.


OR
   b) i) Explain with neat sketch the regenerative circuit.
        ii) Explain with neat sketch the fail safe circuit.

13.a) What is cascade control? explain giving suitable example circuit.
                                                OR
    b) Explain with neat sketch the  pressure and flow control valves.

14 .a) Explain with neat sketch the any two application of metal handling in pneumatic system.
OR
     b) Explain with neat sketch the two application of metal working in pneumatic system

15. a) Explain with neat sketch the PLC constructions and programming.
OR
      b) Explain with neat sketch the different types of electrohydraulic servo valve.