1. Pit moulding ….. for large jobs 2. Investment moulding ….. Lost wax process

Question

Which of the following pairs are correctly matched?                                     

1.   Pit moulding ….. for large jobs

2.   Investment moulding ….. Lost wax process

3.   Plaster moulding ….. Mould prepared in gypsum

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

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