Exhaust & Air filtration Quiz 6

Which system is used to reduce NOx and the levels of unburnt hydrocarbon?

• Catalytic converter

• Exhaust manifold

• Exhaust gas recirculation (EGR)

• Positive crankcase ventilation (PCV)

What is the purpose of the exhaust manifold?

• To filter air entering the engine

• To provide a means for the burnt gases to be directed to the exhaust system

• To recirculate exhaust gases

• To convert harmful gases into harmless gases

What does the inlet manifold do?

• Converts harmful gases into harmless gases

• Reduces NOx and unburnt hydrocarbons

• Allows the air/fuel mixture to be distributed from a single duct to the many required branches

• Reduces hydrocarbon pollution

What should students be able to describe after studying this section?

• The construction and purpose of air filtration systems

• The principles of electrical systems

• The history of automotive engineering

• The design of car interiors

What is the function of the positive crankcase ventilation (PCV) system?

• To increase engine power

• To reduce hydrocarbon pollution

• To filter air entering the engine

• To recirculate exhaust gases

What is the purpose of the exhaust gas recirculation (EGR) system?

• To increase engine power

• To reduce NOx and the levels of unburnt hydrocarbon

• To filter air entering the engine

• To convert harmful gases into harmless gases

Which of the following is a key term related to air filtration systems?

• Exhaust manifold

• Inlet manifold

• Catalytic converter

• Positive crankcase ventilation (PCV)

What is the basic purpose of the exhaust system?

• To increase engine power

• To reduce fuel consumption

• To silence the noise created by the high velocity of the exhaust gas

• To cool the engine

Inlet manifolds allow the air/fuel ________ to be distributed from a single duct to the many required branches necessary for multi-cylinder engines.

• mixture

• length

• diameter

• performance

What would be the effects of a partially blocked air cleaner?

• Increased engine power

• Reduced fuel consumption

• Reduced engine performance

• Increased noise levels