WCS 1106-3 - Knowledge Assessment

Where is the catalytic converter located?

• Between radiator and engine

• Between head and cylinder block

• Between intake manifold and air filter

• Between exhaust manifold and silencer

What is the material that the exhaust manifold made of?

• Zinc

• Plastic

• Cast iron

• Iron steel

What is the purpose of the exhaust manifold installed on the vehicle?

• Cools the air in the exhaust

• To remove the burnt remains

• Encourage smoke to come out of the exhaust

• To allow the exhaust gas to exit through the pipe and silencer

What safety measures are taken when opening the exhaust system component?

• Do not drop the exhaust inlet

• Start the engine while working

• Opening the exhaust pipe when hot

• Always practice cleanliness in the workshop

Name the type of catalytic converter commonly used today?

• Monolithic type

• Conventional type

• Stainless steel shell

• Exhaust gas recirculation

State the harmful gas released from the exhaust during idling speed.

• Hydrocarbon

• Nitrogen oxide

• Carbon monoxide

• Carbon dioxide

• Hydrogen

What is the ratio of stoichiometric air-fuel mixture?

What is the function of the exhaust sensor?

• To dampen the sound coming out of the exhaust

• To monitor oxygen content in the exhaust system

• Helps the engine expel gas and increase the speed of the vehicle

• Regulates oxygen pressure and improves engine performance endurance

Which of the following below is the component of the catalytic converter?

• Rear muffler

• Catalytic layer

• Lambda sensor

• Torque converter

Oxygen sensor also named as ______ sensor.