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Mr. Dubey • 52.70K Points
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Q. The centre of the extruded product can develop cracks called as?

(A) centre cracking
(B) centre burst
(C) arrow headed fracture
(D) all of the mentioned
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Explanation by: Mr. Dubey 
 cracks that are developed in the centre of extruded material is known as internal cracking. these are termed as “centre cracking”, “centre burst”, “chevron cracking”, and as “arrow head cracking”.

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