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.
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