Q. Pick up the correct statement from the following: (Solved)
1. Tacking rivets are used if the minimum distance between centres of two adjacent rivets exceeds 12 t or 200 mm, whichever isless
2. Tacking rivets are not considered to calculate stress
3. Tacking rivets are provided throughout the length of a compression member composed of two components back to back
4. All the above
- d. All the above