1) The exhaust system has three major functions: a) To channel out the waste products of combustion out of the engine. b) To reduce the noise generated by the engine. c) To clean up the emissions that are harmful to the environment. d) All answers shown. 2) What are the main pollutants in exhaust gas? a) CO, NOX, HC b) H2O, CO2 NOX c) HC, H20, NOX d) HC, He, Ar, NOX 3) What is this? a) Manifold b) Down pipe c) Centre section d) DPF 4) What is this? a) Catalytic converter b) DPF c) Exhaust silencer d) Exhaust manifold 5) The catalytic converter converts the harmful exhaust games into H20, 02, N2 and what other? a) CO2 b) HC c) NOx d) CO 6) What is this? a) DPF b) Catalytic converter c) Manifold d) Down pipe 7) What type of rear silencer is designed for harsh noise reduction? a) Resonator type b) Absorption type 8) EGR means: a) Exhaust gas recirculation b) Exhaust gas reduction c) Emitted gas recirculation d) emitted gas reduction 9) What are these? a) Down pipes b) Exhaust silencers c) Manifolds 10) The exhaust is secured to the vehicle by? a) using rubber mounts b) metal brackets and bolts  11) what is used to stop exhaust gases escaping between sections? a) Exhaust gaskets b) Insulation tape c) Rubber O rings d) All sections are welded together

LV02.2 Exhaust Systems and Components (recap)

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