Knowledge of the different metals that are used on a farm is important for successful manufacturing and maintenance processes - NSC Agricultural Technology - Question 2 - 2018 - Paper 1
Question 2
Knowledge of the different metals that are used on a farm is important for successful manufacturing and maintenance processes.
2.1.1 Name TWO alloy elements that de... show full transcript
Worked Solution & Example Answer:Knowledge of the different metals that are used on a farm is important for successful manufacturing and maintenance processes - NSC Agricultural Technology - Question 2 - 2018 - Paper 1
Step 1
Name TWO alloy elements that decrease magnetism in stainless steel.
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Answer
The two alloy elements that decrease magnetism in stainless steel are Chromium and Nickel. These elements help in stabilizing the microstructure, reducing magnetic properties, making the stainless steel less magnetic overall.
Step 2
State THREE properties of copper.
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Copper exhibits several key properties:
Excellent conductor of electricity - Copper is widely used in electrical wiring due to its low resistance and high conductivity.
Good conductor of heat - It is an efficient heat conductor, making it suitable for applications in heat exchangers.
Ductility - Copper can be easily drawn into wires without breaking, allowing it to be used in various applications where flexibility is necessary.
Step 3
Describe TWO requirements that determine the composition of brass.
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The composition of brass is influenced by two main requirements:
Manufacturing requirements - Depending on the application, the alloy must provide specific mechanical properties, such as strength and machinability.
Application requirements/purpose - The specific environment in which brass will be used, such as resistance to corrosion or wear, will dictate its composition.
Step 4
State THREE properties of tin.
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Tin has several significant properties:
Silvery-white color - Tin has a bright appearance which is aesthetically pleasing in coatings and finishes.
Malleability - Tin is easily shaped and can be rolled into thin sheets without breaking.
Resistance to corrosion - Tin has good corrosion resistance which allows it to protect other metals when applied as a coating.