Question 3
.
Fig. 5: A Sectional View of Cylinder Block with Wet Liner
Use the sketch in fig. 5 to answer the questions in 14 (a)
(A)(i) State two functions of the unit in automobiles.
(ii) Name the parts labelled M, N, P and Q.
(iii) State one function of the part labelled Q.
(B)State the firing order of four-stroke engine with:
(i) four cylinders;
(ii) six cylinders.
Observation
(b) (i) The Firing Order of Four-Stroke Engine with Four Cylinders
1 – 3 – 4 – 2 OR
1 – 4 – 3 – 2 OR
1 – 2 – 4 – 3
(ii) The Firing Order of Four-Stroke Engine with Four Cylinders
1 – 5 – 3 – 6 – 2 – 4 OR
1 – 4 – 2 – 6 – 3 – 5