Question

If we compare the compressive and tensile strength respectively of brittle materials with respect to tensile materials, which of the given statements is correct?
1. Stronger In shear but weaker in compression
2. Stronger in compression but weaker in tension
3. Weaker in compression
4. Stronger in tension

Answer 1

Correct Answer - Option 2 : Stronger in compression but weaker in tension

Explanation:

Cast iron is a ferrous metal, an alloy of iron with 2 to 4.5% carbon and 3.5% silicon. 

• Compared to tensile strength cast iron is strong in compressive strength.
• This is because cast iron is having 2 to 4% carbon in it which makes it brittle in nature and all brittle materials are comparatively stronger in compression than in tension.
• Ductile materials are stronger in tension and brittle material are stronger in compression.