0 votes
173 views
asked in production by (215k points)
The occurrence of casting defect ‘rat tail’  is possible because of                        

         1. Soft ramming of sand

         2. Continuous large flat surface on the mould

        3. Excessive hardness of the mould

            Which of the above reasons are correct?

(a) 1 and 2 only         (b) 2 and 3 only

(c) 1 and 3 only         (d) 1, 2 and 3

Please log in or register to answer this question.

Welcome to Q&A discussion forum, where you can ask questions and receive answers from other members of the community.

10.4k questions

274 answers

26 comments

15.3k users

...