Sixth Semester B.Tech Mechanical Engineering ME 010 606 L 05: Industrial Hydraulics Duration: 3 Hours
1) 2) 3) 4) 5)
6) 7) 8) 9) 10)
Maximum marks: 100
Part A Answer all questions. Each question carries 3 marks. Differentiate a positive displacement pump from a non positive displacement pump. Explain the working of a screw pump with appropriate sketches. Draw the JIC symbol of a check valve and explain its working. What do you understand by a flow divider? With a neat sketch explain the working principle of hydraulic ram. (5 x 3 = 15 Marks) Part B Answer all questions. Each question carries 5 marks. With a neat sketch explain the working of an air filter cum water separator. Explain the working of a bent axis pump with appropriate sketches. Discuss the importance of a pressure relief valves in hydraulic circuits. What are the basic elements present in any hydraulic circuits? Discuss any 5 desirable properties of hydraulic fluids. (5 x 5 = 25 Marks)
Part C Answer all questions. Each question carries 12 marks. 11) With appropriate sketches discuss the various accumulators used in hydraulic circuits. OR 12) Draw JIC symbols for; a) Gas charged bladder type accumulator, b) Single acting cylinder with adjustable cushion, c) Pressurized reservoir with return line below the fluid level d) Bi-directional variable displacement pump with electric motor, e) 2 way flow control valve with orifice, f) 2 position, 3 port normally open valve. 13) a) Discuss the constructional differences between a balanced vane pump and an unbalanced vane pump with appropriate sketches. b) With neat sketches discuss about internal and external gear motors. OR
14) a) With neat sketches explain the working of single and double acting pumps. b) Explain the working of a radial piston pump. 15) a) Explain with a neat sketch the working a gate valve. b) With an appropriate example explain the use of shuttle valve. OR 16) a) Explain the working of a solenoid actuated spool valve with an example. b) What do you understand by 3 position, 4 port , tandem centered valve? 17) With neat sketches discuss the concept of metering in and metering out. OR 18) With an appropriate example illustrate the application of pressure sequence valves. 19) Design an appropriate circuit for a hydraulic shaper. OR 20) With appropriate sketches explain the working of power steering. (5 x 12 = 60 Marks)
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