The diagrams below represent two modern equipment used in commercial animal production. Use them to answer question (a), (b) and (c).

            

(a) ldentify the equipment labelled C and D. {2 marks}

(b) Name the parts labelled I to VIl in diagrams C and D. {7 marks}

(c) State three precautions to be observed when using each of the two equipment {6 marks}