Discussion
Which type of joint is used for spot welding?
Answer: C
Spot welding is used on a lap joint.
In spot welding two copper electrodes squeeze the overlapping sheets and pass a heavy current through them; the weld nugget forms where the sheets touch, between the electrodes. The sheets must overlap so that the current passes through both, which is a lap joint, as in car body panels.
In butt, T and corner joints the parts do not overlap face to face, so there is nowhere for the electrodes to clamp both sheets together.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development