Prevention of rusting practice exercise 1

Describe any three methods used to prevent rusting of iron.  (3 marks)

Discuss why rust inhibitors are preferred in industrial machinery and state one advantage of using them. (2 marks)

Explain how electroplating prevents rust and name two metals commonly used in this method. (2 marks)

Explain why grease is applied to moving metal parts. (1 mark)

Give two reasons why sacrificial protection is used on large metal structures.   (2 marks)

Give two reasons why sacrificial protection is used on large metal structures.   (2 marks)

Observe the diagram below and name the method used to protect the iron sheet from rusting.  (2 marks)

Observe the diagram below and name the method used to protect the iron sheet from rusting.  (2 marks)

Stainless steel is used in hospitals and food industries. Explain why this alloy is ideal in such environments.  (2 marks)

Study the diagram below and explain the method being used to prevent rusting. (2 marks)

Study the diagram below and explain the method being used to prevent rusting. (2 marks)

Study the diagram below showing a marine vessel with parts coated and parts uncoated. Describe how painting helps in preventing rust and why it is important in marine environments.  (2 marks)

Study the diagram below showing a marine vessel with parts coated and parts uncoated. Describe how painting helps in preventing rust and why it is important in marine environments.  (2 marks)

Study the diagram of a flat metal roof versus a slanted, well-designed roof. Explain the role of structural design in preventing rust. (2 marks)

Study the diagram below of a flat metal roof versus a slanted, well-designed roof. Explain the role of structural design in preventing rust. (2 marks)