In the given figure drill holes, heading, mucking and benching are num – McqOptions

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1.	In the given figure drill holes, heading, mucking and benching are numbered as 1, 2, 3, 4 The correct sequence is :
A.	4 1 2 3
B.	1 2 3 4
C.	4 1 3 2
D.	3 4 1 3
Answer» D. 3 4 1 3

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