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Consider the following statements regarding crack : 1. Crack is more likely to occur in the regions of discontinuity such as oil holes. 2. Crack is more likely to occur in the regions of irregularities in machining operations such as stamp mark. 3. Crack is more likely to occur in the internal cracks due to defects in materials like blow holes. Which of the above statements are correct ? 

Consider the following statements regarding crack : 1. Crack is more likely to occur in the regions of discontinuity such as oil holes. 2. Crack is more likely to occur in the regions of irregularities in machining operations such as stamp mark. 3. Crack is more likely to occur in the internal cracks due to defects in materials like blow holes. Which of the above statements are correct ?  Correct Answer 1, 2 and 3

Explanation:

The crack is more likely to occur in the following regions:

(i) Regions of discontinuity, such as oil holes, keyways, screw threads etc.

(ii) Region of irregularities in machining operation such as scratches on the surface stamp mark, inspection mark etc.

(iii) Internal crack due to defects in materials ike blow holes.

Related Questions

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