[MW:30008] weld thickness

Background: A welder tests on an NPS 6 Sch. 80 (0.432 in. wall) coupon, depositing 0.100 in. of E6010 and the balance of 0.332 in. using E7018.

Question (1): Using E6010, is the welder qualified to deposit 0.864 in. maximum of weld metal?

Reply (1): Yes.

Question (2): Using E7018, is the welder qualified to deposit 0.664 in. maximum of weld metal?

Reply (2): Yes.

Question (3): Is the welder qualified to deposit 0.864 in. of weld metal using E6010 plus 0.664 in. of E7018 weld metal deposit thickness for a total of 1.528 in. in the same groove?

Reply (3): No

Above clauses are get from ASME ix interpretation.

Please explain  Using E6010, how the welder qualified to deposit 0.864 in. maximum of weld metal???????

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