محمد طارق ابراهيم محمد الوقاد

 

 

Student's Name & ID:                                                                 

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Question I: Water Treatment system

 

1.      The opposite diagram shows components of system:                               (6)

a)      The name of this system is

 

b)      The name of the component (i) is

 

 

c)      The name of the component (ii) is

 

 

d)     What to monitor and look for in the back flow preventive device?

 

 

 

e)      The function of booster pump is

 

 

 

2.      In the pretreatment component system there are two filters. Name them        (2)

 

 

 

 

3.      State the 2 types of RO membranes and compare between their advantages (only one each).                                                                                                         (4)

 

 

 

 

 

 

 

 

Question II: Sterilization

 

1.       Define Disinfection                                                                                          (1)

 

 

2.      Describe steam sterilization process                                                                   (2)

 

 

 

 

 

3.      If a tool is used once every 7 months what packing would you suggest using it during sterilization?                                                                                      (1)

 

 

4.      State the liquid used in liquid sterilization                                                        (1)

 

 

 

 

5.      What is the main disadvantage of chemical sterilization                                   (1)

 

 

 

6.      Describe the procedure of heat disinfection                                                      (2)

 

 

                                                                    

 

 

 

 

Question III: Gas system

                    

1.      Liquefied oxygen is kept in cryogenic tanks. Explain the cryogenic design of the tanks in order to minimize heat loss.                                                            (3)

 

 

 

 

 

 

 

 

 

 

2.      Why 2 compressors are used in the air Gas system?                                          (1)

 

 

 

 

3.      What is the function of pressure relief valve in the Gas system?                      (1)

 

 

 

4.       State the location of the after cooler.                                                               (1)

 

 

 

 

5.      In the opposite figure show the Hi-Vac stage by shading the area. (Show which valves are open and which are closed)?                                                              (2)

 

 

 

 

 

 

 

 

 

6.      A duplex filter is 2 filters in one. State the name of the  2 filters                     (2)

 

 

 

 

 

 

Question IIII: Ventilators

1.      What does ventilation means?                                                                           (1)

 

 

 

 

2.      How does negative pressure ventilation works                                                 (2)

 

 

 

 

 

3.      How does negative pressure ventilation works                                                             (2)