Question 77 on Boiler Foundations, October 31: (A certain score will be given to the top 40)
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True or False: The butt welds of the boiler’s water wall tubes after major repair should be subjected to a ball test. Thank you for your support; correct answers earn +8 points, while incorrect answers or those with 45 posts earn +3 points
The butt welds of the water wall tubes in the boiler after major repair should undergo a ball test. Not necessary
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The butt welds of the water wall tubes in a boiler after major repair should undergo a ball test. Wrong
The butt welds of the water wall tubes in a boiler after major repair should undergo a ball test. (Correct)
The butt welds of the water wall tubes in a boiler after major repair should undergo a ball test. (X)
The butt welds of the water wall tubes in a boiler after major repair should undergo a ball test. (Wrong)
The butt welds of the water wall tubes in a boiler after major repair should undergo a ball test. (Wrong)
The butt welds of the water wall tubes in a boiler after major repair should undergo a ball test. (False)
True or False: The butt welds of the boiler’s water wall tubes after major repair should undergo a ball test. (×)