Composition of alloys practice exercise 3

A family in Mombasa buys stainless steel cooking pots as shown below. Identify the composition of stainless steel and explain why it is suitable for making utensils. (2 marks)

A family in Mombasa buys stainless steel cooking pots as shown below. Identify the composition of stainless steel and explain why it is suitable for making utensils. (2 marks)

A family in Mombasa buys stainless steel cooking pots as shown below. Identify the composition of stainless steel and explain why it is suitable for making utensils. (2 marks)

A family in Mombasa buys stainless steel cooking pots as shown below. Identify the composition of stainless steel and explain why it is suitable for making utensils. (2 marks)

A family in Mombasa buys stainless steel cooking pots as shown below. Identify the composition of stainless steel and explain why it is suitable for making utensils. (2 marks)

A plumber in Nairobi replaces old water taps with new ones made of brass. What is the composition of brass and why is it used for taps? (2 marks)

A plumber in Nairobi replaces old water taps with new ones made of brass. What is the composition of brass and why is it used for taps? (2 marks)

A plumber in Nairobi replaces old water taps with new ones made of brass. What is the composition of brass and why is it used for taps? (2 marks)

The county government installs the bronze statue shown below in a park. State the composition of bronze and explain why it is suitable for statues. (2 marks)

The county government installs the bronze statue shown below in a park. State the composition of bronze and explain why it is suitable for statues. (2 marks)

The county government installs the bronze statue shown below in a park. State the composition of bronze and explain why it is suitable for statues. (2 marks)

The county government installs the bronze statue shown below in a park. State the composition of bronze and explain why it is suitable for statues. (2 marks)

During the construction of a stadium in Nairobi, beams made of low-carbon steel bent under heavy weight. Why is low-carbon steel not good for such buildings, and how does adding more carbon change steel? (2 marks)

During the construction of a stadium in Nairobi, beams made of low-carbon steel bent under heavy weight. Why is low-carbon steel not good for such buildings, and how does adding more carbon change steel? (2 marks)

During the construction of a stadium in Nairobi, beams made of low-carbon steel bent under heavy weight. Why is low-carbon steel not good for such buildings, and how does adding more carbon change steel? (2 marks)

A Kisii hospital bought surgical scissors made from ordinary iron instead of stainless steel. Within weeks they rusted. State the correct composition of stainless steel and explain why chromium is necessary. (2 marks)

A Kisii hospital bought surgical scissors made from ordinary iron instead of stainless steel. Within weeks they rusted. State the correct composition of stainless steel and explain why chromium is necessary. (2 marks)

A Kisii hospital bought surgical scissors made from ordinary iron instead of stainless steel. Within weeks they rusted. State the correct composition of stainless steel and explain why chromium is necessary. (2 marks)

A plumber in Mombasa must choose between brass taps and ordinary steel taps for a borehole supply with salty water. Which is better and why?  (2 marks)

A plumber in Mombasa must choose between brass taps and ordinary steel taps for a borehole supply with salty water. Which is better and why?  (2 marks)

A plumber in Mombasa must choose between brass taps and ordinary steel taps for a borehole supply with salty water. Which is better and why?  (2 marks)

In Kisumu, a company is building a new bridge. The engineers decide to use steel beams. Explain the composition of steel and why it is suitable for building the bridge. (2 marks)

In Kisumu, a company is building a new bridge. The engineers decide to use steel beams. Explain the composition of steel and why it is suitable for building the bridge. (2 marks)

In Kisumu, a company is building a new bridge. The engineers decide to use steel beams. Explain the composition of steel and why it is suitable for building the bridge. (2 marks)

Kenya Airways uses planes that are partly built from duralumin. What is the composition of duralumin and why is it suitable for aircrafts?  (2 marks)

Kenya Airways uses planes that are partly built from duralumin. What is the composition of duralumin and why is it suitable for aircrafts?  (2 marks)

Kenya Airways uses planes that are partly built from duralumin. What is the composition of duralumin and why is it suitable for aircrafts?  (2 marks)

Kenya Airways uses planes that are partly built from duralumin. What is the composition of duralumin and why is it suitable for aircrafts?  (2 marks)

Kenya Airways considers replacing heavy steel parts with another alloy, shown in the image below, to reduce fuel use while keeping safety. Name the alloy, give its composition, and explain why it is better. (2 marks)

Kenya Airways considers replacing heavy steel parts with another alloy, shown in the image below, to reduce fuel use while keeping safety. Name the alloy, give its composition, and explain why it is better. (2 marks)

Kenya Airways considers replacing heavy steel parts with another alloy, shown in the image below, to reduce fuel use while keeping safety. Name the alloy, give its composition, and explain why it is better. (2 marks)

Some coins in Eldoret wore out quickly. Tests showed they were made of pure copper instead of the correct alloy. Identify the correct alloy and explain why it is suitable for coins.  (2 marks)

Some coins in Eldoret wore out quickly. Tests showed they were made of pure copper instead of the correct alloy. Identify the correct alloy and explain why it is suitable for coins.  (2 marks)

Some coins in Eldoret wore out quickly. Tests showed they were made of pure copper instead of the correct alloy. Identify the correct alloy and explain why it is suitable for coins.  (2 marks)

Some coins in Eldoret wore out quickly. Tests showed they were made of pure copper instead of the correct alloy. Identify the correct alloy and explain why it is suitable for coins.  (2 marks)