Match List I (Steel) with List II (Application) and select the correct...
List I (Steel) and List II (Application):
List I:
A. Mild Steel
B. Tool Steel
C. High Carbon Steel
D. Medium Carbon Steel
List II:
1. Ball bearing
2. Cold chisels
3. Shaft and axles
4. Rolled steel sections
To match the steel types in List I with their corresponding applications in List II, we need to understand the properties and characteristics of each type of steel.
1. Mild Steel:
- Mild steel is a low carbon steel with a relatively low tensile strength.
- It is ductile and easily machinable.
- It is mainly used in construction, automobile parts, and general engineering applications where strength is not the primary requirement.
2. Tool Steel:
- Tool steel is a high carbon steel alloyed with other elements like chromium, vanadium, and tungsten.
- It has excellent hardness, wear resistance, and heat resistance.
- Tool steel is used for making tools, dies, cutting tools, and machine components that require high strength, hardness, and wear resistance.
3. High Carbon Steel:
- High carbon steel contains a higher percentage of carbon, typically between 0.6% and 1.5%.
- It has high tensile strength, hardness, and wear resistance.
- High carbon steel is commonly used in applications that require a combination of strength and toughness, such as springs, blades, and high-strength wire.
4. Medium Carbon Steel:
- Medium carbon steel falls between mild steel and high carbon steel in terms of carbon content and properties.
- It offers a balance of strength, toughness, and machinability.
- Medium carbon steel is used in various applications such as shafts, axles, gears, and crankshafts.
Now, let's match the steel types with their corresponding applications:
- Mild Steel (A): It is commonly used for rolled steel sections in construction applications. Therefore, the correct match is (A-4).
- Tool Steel (B): Tool steel is used for making cold chisels, which are used for cutting and shaping hard materials. Therefore, the correct match is (B-2).
- High Carbon Steel (C): High carbon steel is commonly used for making ball bearings, which require high hardness and wear resistance. Therefore, the correct match is (C-1).
- Medium Carbon Steel (D): Medium carbon steel is commonly used for shafts and axles, which require a balance of strength and toughness. Therefore, the correct match is (D-3).
Based on the above analysis, the correct matching of List I with List II is option (d) 4 1 2 3.
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