Que. 2. Centre drilling is an operation of.......?

A. Drilling and countersinking B. Drilling and counter boring C. Marking the centre location before drilling D. Enlarging the diameter of a hole

• Vijaykharbade
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• 43 Answers

• C

  • Chirag
  • 10 Jan
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• a

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• D

  • Virendra
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• c

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• c

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• c

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• C

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• A

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• c

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• A

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• c

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• 2

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• c

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• A

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• c

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• c

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• B

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• C 100%

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• c

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• c

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