question_answer

         Which of the following joining processes are best suited for manufacturing pipes to carry gas products?                                    

1. Rivetting

2. Welding

3. Bolts and nuts

Select the correct answer using the codes given below:

Codes:                                      

A) 1 and 2            

B) 1 and 3           

C) 2 alone             

D) 1, 2 and 3