Consider the following statements regarding welded joints: 1. It is a permanent type of joint 2. It is reliable and economical for pressure vessel construction 3. If is free from fabricational residual stresses 4. Such joints are suitable for static loading only 5. Welding is a versatile and flexible metal joining process. Which of the above statements are correct?
(a) 1, 2 and 3 only (b) 2, 3 and 4 only
(c) 1, 2, 3, 4 and 5 (d) 1, 2 and 5 only