M

Mr. Dubey • 52.30K Points
Coach 

Q. Friction welding produces quality joints, with a 100%            weld.

(A) lap joint
(B) tee-joint
(C) butt joint
(D) edge joint
Correct : Option (C)

Explanation: 
 friction welding produces forged quality joints, with a 100% butt joint weld through the contact area. furthermore, in friction welding heat affected zone is much narrower as compared to other welds, which indeed reduces the cost of post-weld heat treatments (stress relieving processes).

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