Which of the following can be present in the composite liners developed by the RDSO?

Which of the following can be present in the composite liners developed by the RDSO? Correct Answer Malleable cast iron or Mild Steel

Two types of composite liners are developed by the RDSO. One is with malleable cast iron and nylon components and second composite liner with MS and nylon components.

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The difference between dry liners and wet liners is __________
In the following question 3 statements are given. You have to find which is/are necessary and sufficient to answer the following question. The ratio between the present ages of the Barkha and Mamta is 1 : 3. Find the present age of the Mamta. Statement I: Difference between the present ages of Neha and Barkha is 22 years. Statement II: The present age of Neha is 4 years less than thrice the present age of Barkha. Statement III: Difference between the present ages of the Mamta and Barkha is 26 years.