Prevention of rusting practice exercise 4

A construction company wants to build an outdoor steel bridge in Eldoret where humidity is high. Which is the most effective long-term prevention method?

A construction company wants to build an outdoor steel bridge in Eldoret where humidity is high. Which is the most effective long-term prevention method?  (1 mark)

A construction company wants to build an outdoor steel bridge in Eldoret where humidity is high. Which is the most effective long-term prevention method?  (1 mark)

A farmer in Kisumu notices that his wheelbarrow starts rusting quickly during the rainy season. Which method would be the most effective in protecting the wheelbarrow from rust?

A farmer in Kisumu notices that his wheelbarrow starts rusting quickly during the rainy season. Which method would be the most effective in protecting the wheelbarrow from rust?  (1 mark)

A farmer in Kisumu notices that his wheelbarrow starts rusting quickly during the rainy season. Which method would be the most effective in protecting the wheelbarrow from rust?  (1 mark)

A farmer uses a plough with iron blades. Which method is most suitable for protecting the blades while still allowing them to work effectively?

A farmer uses a plough with iron blades. Which method is most suitable for protecting the blades while still allowing them to work effectively?  (1 mark)

A farmer uses a plough with iron blades. Which method is most suitable for protecting the blades while still allowing them to work effectively?  (1 mark)

A hardware shop in Nakuru sells iron roofing sheets. A customer wants them to last longer without rusting. Which advice should the shopkeeper give?

A hardware shop in Nakuru sells iron roofing sheets. A customer wants them to last longer without rusting. Which advice should the shopkeeper give?  (1 mark)

A hardware shop in Nakuru sells iron roofing sheets. A customer wants them to last longer without rusting. Which advice should the shopkeeper give?  (1 mark)

A school laboratory technician wants to store iron nails for a long time. Which method will keep them rust-free?

A school laboratory technician wants to store iron nails for a long time. Which method will keep them rust-free?  (1 mark)

A school laboratory technician wants to store iron nails for a long time. Which method will keep them rust-free?  (1 mark)

A ship in Mombasa has parts constantly exposed to salty sea water. Which prevention method would be most reliable for such conditions?

A ship in Mombasa has parts constantly exposed to salty sea water. Which prevention method would be most reliable for such conditions?  (1 mark)

A ship in Mombasa has parts constantly exposed to salty sea water. Which prevention method would be most reliable for such conditions?  (1 mark)

A teacher gives students a nail coated with grease and another painted nail. After two weeks of exposure to rain, the greased nail shows signs of rust, but the painted nail remains intact. What is the best explanation for this difference?

A teacher gives students a nail coated with grease and another painted nail. After two weeks of exposure to rain, the greased nail shows signs of rust, but the painted nail remains intact. What is the best explanation for this difference?  (1 mark)

A teacher gives students a nail coated with grease and another painted nail. After two weeks of exposure to rain, the greased nail shows signs of rust, but the painted nail remains intact. What is the best explanation for this difference?  (1 mark)

Study the table below showing different metal objects and conditions, then answer the question: ObjectEnvironmentBest Rust Prevention Method Iron roof in NairobiRainy & dry seasons? Car in KisumuNear Lake Victoria? Ship in MombasaSalty sea water? Which combination of methods would best prevent rust in these objects?

Study the table below showing different metal objects and conditions, then answer the question. Which combination of methods would best prevent rust in these objects?  (1 mark) Object Environment Best Rust Prevention Method Iron roof in Nairobi Rainy & dry seasons ? Car in Kisumu Near Lake Victoria ? Ship in Mombasa Salty sea water ?

Study the table below showing different metal objects and conditions, then answer the question. Which combination of methods would best prevent rust in these objects?  (1 mark) Object Environment Best Rust Prevention Method Iron roof in Nairobi Rainy & dry seasons ? Car in Kisumu Near Lake Victoria ? Ship in Mombasa Salty sea water ?

Study the table below showing different metal objects and conditions, then answer the question. Which combination of methods would best prevent rust in these objects?  (1 mark) Object Environment Best Rust Prevention Method Iron roof in Nairobi Rainy & dry seasons ? Car in Kisumu Near Lake Victoria ? Ship in Mombasa Salty sea water ?

Study the diagram showing a water pipe buried underground. One pipe is wrapped with plastic coating, the other is bare iron. Which pipe will rust faster? Diagram description: Pipe A is wrapped in plastic; Pipe B is bare and buried directly in soil.

The diagram below shows a water pipe buried underground. One pipe is wrapped with plastic coating, the other is bare iron. Which pipe will rust faster?  (1 mark)

The diagram below shows a water pipe buried underground. One pipe is wrapped with plastic coating, the other is bare iron. Which pipe will rust faster?  (1 mark)

The diagram below shows a water pipe buried underground. One pipe is wrapped with plastic coating, the other is bare iron. Which pipe will rust faster?  (1 mark)

Study the diagram of two cars: Car A is frequently washed and waxed, Car B is left dirty and muddy for weeks. Which car is less likely to rust? Diagram description: Car A is clean and shiny; Car B is covered in thick mud.

The diagram below shows two cars: Car A is frequently washed and waxed, Car B is left dirty and muddy for weeks. Which car is less likely to rust?  (1 mark)

The diagram below shows two cars: Car A is frequently washed and waxed, Car B is left dirty and muddy for weeks. Which car is less likely to rust?  (1 mark)

The diagram below shows two cars: Car A is frequently washed and waxed, Car B is left dirty and muddy for weeks. Which car is less likely to rust?  (1 mark)