welding question doubt

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welding question doubt

Postby mukesh3021 » Wed Sep 30, 2015 10:50 pm

Two aluminum alloy plates each 10 mm thick and 1 m long are welded without crowning by multi-pass tungsten inert gas butt welding. The joint configuration is V-type with 60∘ angle and root gap is maintained at 5 mm. If electrode of 5 mm diameter with 500 mm length is used for welding, then the number of electrodes required is
(A) 7 (B) 9 (C) 11 (D) 13
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