The GATE Grind

GATE 2021 MT – Question 14

Manufacturing Processes · Metal forming · 1 mark · Multiple choice

Which diagram shows the centre-split defect in rolling?

Diagram for GATE 2021 MT question 14
  1. Diagram A
  2. Diagram B
  3. Diagram C
  4. Diagram D

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Show answer and explanation

Correct answer: (D) Diagram D

Explanation

Centre splitting is a crack through the middle portion of the rolled strip rather than edge cracking or wavy edges. Figure **D** depicts the central longitudinal split; C shows alligator-type thickness separation.