(a)       State one reason for carrying out each of the following heat treatment  processes:
                       

1. tempering of cold chisel after hardening;
2. annealing a metal after raising.

(b)       Explain how to harden and temper a cold chisel in a workshop.

(c)        List three hand forging operations.           

(d)       State one distinct feature that differentiates the hand file from the flat file.