2b) Weld Joints In Flat Position

Question 0

Initial weld pass that provides complete penetration through the thickness of the joint

Answer 0

Root pass

Question 1

Short sections of beads 1/4” to 1/2” long which are used to maintain the proper position and root opening between the metal being welded

Answer 1

Tack weld

Question 2

Fills the remaining portion after the root pass

Answer 2

Fill or filler joints

Question 3

additional reinforcement to the weld and gives it a nice appearance , should not extend above the plate surface by 1/16”

Answer 3

Cap or cover pass

Question 4

Edges of the 2 plates are in direct contact with each other

Answer 4

Closed butt joints

Question 5

Placed apart with a root opening 3/32” to 1/8” , back up strip or block is normally used underneath the joint

Answer 5

Open butt joint

Question 6

Commonly used when fabrication straight and rolled shapes

Answer 6

T joints

Question 7

For tapping method, scratching method how high should u raise the electrode to preheat the metal

Answer 7

3/8” to 1/2” then lower to a distance equal to the diameter of the electrode

Question 8

Work and travel angles for a short bead in flat position

Answer 8

15-25 degrees in travel angle and 90 degrees work angle

Question 9

Work and travel angles for a butt joint in a flat position

Answer 9

15-30 degrees in travel and 90 degrees in work angle

Question 10

Work and travel angles for a lap/T in flat position

Answer 10

30 degrees in travel and 1st-45 2nd- 70 3rd-30 degrees in work angle