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The fracture in cast iron occur due to compression (direction of load) test along its

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The fracture in cast iron occur due to compression (direction of load) test along its


1. load
2. perpendicular to axis of load
3. oblique plane
4. None of above
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Correct Answer - Option 3 : oblique plane

Explanation:

  • Cast iron is very strong in compression but weak in shear.
  • When a cast iron specimen is subjected to compression test a plane inclined at 45o to the normal plane has shear stresses due to a resolved compression force.
  • Thus this plane is subjected to shear stress.
  • As cast iron is weak in shear, failure occurs along this inclined plane.
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