
	Trending ▼ ICSE CBSE 10th ISC CBSE 12th CTET GATE UGC NET Vestibulares ResFinder

Industrial Fluid Power (October 2009)

5 pages, 29 questions, 0 questions with responses, 0 total responses,

	pune_eng	+Fave Message
	Profile Timeline Uploads Q & A

Home > pune_eng >

Instantly get Model Answers to questions on this ResPaper. Try now!
NEW ResPaper Exclusive!

Formatting page ...

Total No. of Questions : 12] [Total No. of Pages : 5 [3664] - 134 P 973 B.E. (Mechanical) INDUSTRIAL FLUID POWER (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answer Q.1 or Q.2; Q.3 or Q.4; Q.5 or Q.6 from Section I and Q.7 or Q.8; Q.9 or Q.10 and Q.11 or Q.12 from Section II. 2) Answers to the two sections should be written in separate answer books. 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. 5) Use of electronic pocket calculator is allowed. 6) Assume suitable data, if necessary. SECTION - I Q1) a) b) c) What are the factors considered while selecting Hydraulic fluids? [6] What are the effects of contaminants on different components of hydraulic systems? [6] What are the different dynamic seals used in hydraulic components? What are the typical locations where they are used? [6] OR Q2) a) b) c) Q3) a) b) What are the different materials used for seals? Compare their characteristics. [8] What is the effect of temperature and pressure on the properties of hydraulic fluids? [4] What are the locations where filters are typically installed in hydraulic circuits? What are their advantages? [6] Draw a neat sketch and explain working of a fixed delivery axial piston [10] pump. What are the different accessories used in hydraulic systems? What are their functions? [6] OR Q4) a) b) c) What are the applications of accumulators in hydraulic circuits? [4] Compare characteristics, advantages and applications of gear pumps, vane pumps, axial piston pumps and radial piston pumps. [8] What are the functions of different parts of a typical reservoir assembly?[4] P.T.O. Q5) a) b) Write in brief on Cartridge valves . [6] Draw a neat sketch and explain working of a typical pressure and temperature compensated flow control valve. [10] OR Q6) a) b) c) Draw a neat sketch and explain working of a sequence valve. [8] Classify different direction control valves. [4] What is the purpose of providing pilot operated check valve in hydraulic circuits? Explain in short a typical application of pilot operated check valve. [4] SECTION - II Q7) a) b) Classify different hydraulic actuators. Analyse the circuit shown in figure 1. [3664] - 134 -2- [6] [10] OR Q8) a) b) Q9) a) b) c) What is the purpose of providing cushioning in cylinders? With the help of a neat sketch explain how it is achieved? [8] Analyse the circuit shown in figure 2. [8] Compare characteristics of Hydraulic & Pneumatic systems. [6] Draw a neat sketch and explain working of a typical 5 way 2 position solenoid operated direction control valve used in pneumatic circuits. [8] What is the purpose of providing Regulator in pneumatic systems?[4] OR Q10)a) b) c) What is the purpose of providing Filter, Lubricator, mufflers and driers in pneumatic systems? [8] Explain working of a typical air motor. [5] Draw typical circuits of different speed regulating methods used in pneumatic circuits. [5] [3664] - 134 -3- Q11)a) b) A double acting hydraulic cylinder has a reciprocating motion. The forward motion is obtained using a regenerative circuit. The load during the forward stroke is 12 kN. The total stroke of 50 cm is to be completed in about 5 seconds. The return speed is to be as fast as possible. Draw a circuit to achieve above. Select different components you have used in the circuit from the given data. Mention ratings of the components in case it is not available in the given data. [10] A pneumatic cylinder is to be continuously moved to and fro. The motion is to be started by operating knob of a direction control valve. The continuous motion is interrupted by operating knob of another direction control valve. The cylinder should stop immediately after pressing this knob. Develop a suitable pneumatic circuit for this application using standard symbols. [6] OR Q12)A hydraulic cylinder used to operate a machine has the following requirements. a) During the initial movement of 300 mm it has a load of 30 kN and it should complete this distance in about 6 seconds. b) This is followed by a slow working stroke of 100 mm against a load of 50 kN which should be completed in 3 to 6 seconds. The time required is to be adjustable. c) The return motion of 400 mm is against a load of 40 kN which should be completed in about 7 seconds time. Facility is required to hold the cylinder anywhere in between the entire stroke. Solenoid operated valves are used in the circuit. A meter out circuit is used. Draw a circuit which will fulfill these requirements. Select different components you have used in the circuit from the given data. Mention ratings of the components in case it is not available in the given data. [16] [3664] - 134 -4- [3664] - 134 -5-

Formatting page ...

Additional Info : 2003 Course
Tags : Pune, Engineering, University of Pune, Engineering question papers, Pune University, previous year question papers, question papers, india, model question paper, pune university paper pattern, pune university syllabus, old question papers

pune_eng chat

Horizontal lines at:
Guest Horizontal lines at:
AutoRM Data:
Box geometries: