FLUID POWER ENGINEERING MODEL QUESTION PAPER DIPLOMA COURSE IN MECHANICAL ENGINEERING 4TH SEM

DERARTMENT OF TECHNICAL EDUCATION

DIPLOMA COURSE IN MECHANICAL ENGINEERING

FOURTH SEMESTER

                                                        MODEL QUESTION PAPER

FLUID POWER ENGINEERING

Time: 3Hrs                                                                                                         Max marks: 100 

          Note:                                                                                                                                       1.Section I is compulsory                                                                                                                           

2. Answer any six full questions from Section II, Section III, and Section IV

Choosing at least two from each section

 

SECTION -I

1  A)  Fill in the blanks with appropriate words:-                                                                  1X5

I)        The gear pump is ______________type of pump

ii)       A 4/3 valve consists of ____positions ____ports

iii)      According to Pascal law the pressure enclosed fluid is ____through out the practical system

iv)      The  _______ valves are used to restrict the flow in one direction.

v)       In spool valve, the spools are moving _____within the valve body.

 B)     Explain the basic logics used in fluid logics.                                                               5

 

 

SECTION -Ii

 

 2 a)      State the importance of  Fluid Power  in Industrial Automation                              5

   b)    List the elements of automation                                                                                  5

    c)     State the  Basic Methods of Transmission of power.                                                            5

           

 3 a)     Give the classification of pumps                                                                     .           5

  b)     Sketch and explain external gear pump                                                                      5

   c)      Explain briefly 4/3 direction control valve.                                                               5

 

 

4 a)    Define actuators                                                                                                          2

   b)    Explain with a neat sketch Construction and working of a double acting cylinder   8

  c)     Explain the working of unidirectional hydraulic motor                                              5

 

SECTION -III

 5   a)   What are  Reservoirs?                                                                                                  2         

    b)   Explain the function of hydraulic accumulator-spring loaded with a neat sketch.     7

     c)    Explain the working of an intensifier with a neat sketch                               .           6         

 

 6  a)    Define pneumatics and mention applications of pneumatics.                         .           5

   b)    Sketch and explain reciprocating piston compressor                                                  6

    c)                                                                                                                                        Explain briefly sliding vane motor                                                                                                                             4

 

7  a)   Write brief note on ports and positions                                                                       4

    b)   Explain the control of double acting cylinder using 4/2 DCV                                    6

    c)   Sketch and explain Basic pneumatic circuit                                                                5

 

 

 

SECTION -IV

8  a)     State the advantages of combination of circuits                                                         5         

  b)     Compare Hydraulic and pneumatic systems                                                               5

  c)     Briefly explain electro hydraulic system                                                                     5         

 

9 a)      State any 3 advantages and 3 disadvantage of  Fluid Logic/Fluidics                        .           6

  b)     with an example, the implementation of AND logic                                                  5

  c)      Briefly explain-Reflex Sensors                                                                                   4

         

10    Write short note on any three of the following                                                                     

 

5x3=15

a.       common faults in hydraulic system

b.      causes of contamination

c.       Preventive measures.

d.      Maintenance schedule

e.       Common faults in pneumatic system

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