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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
2.1.1 Name TWO alloy elements that decrease magnetism in stainless steel.
Answer
The two alloy elements that decrease magnetism in stainless steel are Chromium and Nickel. These elements help to reduce the magnetic properties of stainless steel, making it more suitable for various applications.
Step 2
2.1.2 State THREE properties of copper.
Answer
Copper possesses several noteworthy properties:
- Excellent conductor of electricity: Copper is widely used in electrical wiring due to its high electrical conductivity.
- Good conductor of heat: It is also an outstanding conductor of heat, making it ideal for thermal applications.
- Ductility: Copper can be easily drawn into wires, highlighting its ductile nature.
Step 3
2.1.3 Describe TWO requirements that determine the composition of brass.
Answer
The composition of brass is influenced by various requirements:
- Manufacturing requirements: The intended use of brass, such as in plumbing or musical instruments, dictates specific compositions to meet mechanical and acoustic properties.
- Application requirements/purpose: Different applications necessitate varying levels of strength, corrosion resistance, and machinability, which influence the composition of brass alloys.
Step 4
2.1.4 State THREE properties of tin.
Answer
Tin has several unique properties:
- Malleability: Tin can be easily hammered or pressed into thin sheets without breaking.
- Resists corrosion: One of tin's key advantages is its ability to resist corrosion, making it valuable for protecting other metals.
- Non-toxic: Tin is safe for use in food packaging, due to its non-toxic nature when compared to other metals.