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Posted By: Sriram Member Level: Diamond Posted Date: 14 Jun 2008
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2006 Andhra Pradesh State Jawaharlal Nehru Technological University B.Tech HYDRAULIC AND PNEUMATIC CONTROL SYSTEMS Set No.3 Question paper
Code No: RR412205 Set No. 3
IV B.Tech I Semester Regular Examinations, November 2006
HYDRAULIC AND PNEUMATIC CONTROL SYSTEMS
(Instrumentation & Control Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. Discuss the physical properties of seals, which affect the hydraulic systems. [16]
2. Discuss rigid and semi rigid piping installations procedures with necessary figures.
[16]
3. Write about transmission of fluid power through double acting cylinder with neat
diagram. [16]
4. What is meant by 5/3 direction control valve and explain the main functions of
direction control valves. [16]
5. What is cartridge value? Describe its operation and enlist advantages. [16]
6. (a) What in an accumulator and its suitability in control systems? [8]
(b) Enlist types of accumulators and explain any one with a neat sketch. [8]
7. Explain the following.
(a) Variable pump and variable motor [8]
(b) Adjustable pump and fixed displacement motor. [8]
8. What are common problems in pneumatic systems? Discuss briefly. [16]
? ? ? ? ?
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