hydraulics and pneumatics question paper 2019 semester end examination(SEE), Papers of Hydraulics

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Course Title: Hydraulics And Pneumatics Duration: 03 Hours Time: 10:00 AM to 01:00 PM Note: 1b, 2.b. 3.a. 3.b. & DAYANANDA SAGAR UNIVERSITY VII Semester B. Tech Examinations - December 2019 / January 2020 “ 1. Answer 5 full questions choosing one from each Section 2, Each Section carries 12 Marks 3. Draw neat sketches wherever necessary 4. Missing Data may be suitably assumed SECTION - 1. Explain pumping theory with neat sketch and List the classification of pumps in detail? With a neat sketch, Explain construction, working, advantages and disadvantages of in al gear pump. OR State & Explain Pascal's law with an application? Obtain force displacement relation? The displacement of a pump operating at 1000 rpm at a pressure of 70 bar is 100 cm. The input torque is 120 N-m. If the pump delivers 0.0015 m3/s of oil, find overall efficiency and theoretical torque. Suggest which pump it is and justify? SECTION - 2 Explain hydraulic cushioning with a neat sketch and graphical symbol. Explain with neat sketch and graphical symbol of center position flow patterns (neutral position) directional control valve. OR What is pressure compensation and non-pressure compensation? Explain with a neat sketch the working of pressure compensated flow control valve. f Course Code: 16ME403 Date: 24-12-2019 Max Marks: 60 (06 Marks) (06 Marks) (06 Marks} (06 Marks) (06 Marks) (08 Marks) (P.T.O)