Which of the following process can be used for welding of Aluminum alloys? P. Submerged arc welding Q. Gas metal arc welding R. Electroslag welding S. Gas tungsten arc welding

Which of the following process can be used for welding of Aluminum all

1.	Which of the following process can be used for welding of Aluminum alloys? P. Submerged arc welding Q. Gas metal arc welding R. Electroslag welding S. Gas tungsten arc welding
A.	P and Q
B.	Q and S
C.	Q and R
D.	R and S
Answer» C. Q and R

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