Page 43 - PNEUMATIC AND HYDRAULIC
P. 43

SELF ASSESSMENT CHAPTER 2



                       QUESTION 1


                         a) Draw the symbol of the hydraulic components below:
                              i.  Pressure Relief Valve

                             ii.  Adjustable Flow Control Valve
                             iii.  Non-return Valve

                             iv.  Single Acting Cylinder with Spring Return

                             v.  Fixed Displacement Hydraulic Pump
                                                                                               (5 marks)



                         b) Pump  is  the  main  component  in  hydraulic  system.  Draw  and  label  the
                            construction of vane pump.

                                                                                              (10 marks)


                         c) There are several problems occur at the component, so that its effect to the
                            operation of hydraulic system. State: -

                              i.  The possible cavitation effect in hydraulic transfer oil

                                                                                               (5 marks)


                             ii.  The possible causes when the transfer pressure does not reach the pressure
                                  required in the system.

                                                                                               (5 marks)
















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