Why is the root pass weld started on top of a tack weld?
A) To eliminate the potential lack of fusion
B) To prevent porosity caused by the lack of shielding gas at the instant the weld starts
C) So the arc light will show the root opening and make it easier to get aligned with the root opening as the weld moves off of the tack weld
D) The root pass can be started anywhere it is comfortable for the welder to begin welding.
Correct Answer:
Verified
Q1: How many tack welds are needed to
Q2: What is another name for the cover
Q3: The hot pass can be made _;
Q4: The maximum diameter of any single porosity
Q5: Which step is critical when making a
Q7: For a visual inspection of a pipe
Q8: What is the bevel angle for the
Q9: For a visual inspection of a pipe
Q10: Any part of the root face that
Q11: What is the advantage of the fast
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents