The performance of candidates who attempted this question was very poor. The required response to the various parts of the question are:
(a) (i) exhaust system of a motor vehicle.
(ii) V is flange
W is front exhaust pipe
X is intermediate pipe
Y is silencer or muffler
Z is Tail pipe/Exhaust pipe.
(iii) The purpose of the component is to:
- carry the exhaust gas out of the cylinder.
- reduce the noise emitted by pressure of gas leaving the engine.
(iv) The purpose of V is to connect the exhaust system
to the manifold
The purpose of Y is to reduce the noise in the exhaust system.
(b) - carbon dioxide (CO2)
- water (H2O).
- Nitrogen (N2).
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