Q4. a) Describe function of oil seals. (6)
b) Describe materials with their qualities used for making shaft seals. (6)
c) Describe cares to be taken in storing shaft seals. (4)
Q8. a) Describe the working of a Mechanical Shaft seal with a diagram. How working fluid leak is prevented? (8)
b) What are causes of Mechanical shaft seal failure? (4)
c) Describe for Mechanical shaft seal usage
i) Advantages (2)
ii) Disadvantages (2)
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