Section A

Question 1

1. (a)  The sketch in Figure 1 shows a connecting rod.

      (i) Name the parts labelled X, Y and Z.
(ii)State the function of the connecting rod.
(b)  State the function of a propeller shaft.
(c) (i) Name two types of aluminium alloy piston’s skirts.
(ii) State two merits of aluminium alloy piston.
(iii) State one reason why the cast iron piston is not used on modern cars.