Light Motor Vehicle Engine Systems Quiz

What is the purpose of a fuel injection system in a light motor vehicle?

• To provide air conditioning for the vehicle

• To play music through the car speakers

• To control the vehicle's steering

• To deliver the right amount of fuel to the engine for efficient combustion.

What are the main components of an exhaust system in a light motor vehicle?

• The main components of an exhaust system in a light motor vehicle are the exhaust manifold, catalytic converter, muffler, and tailpipe.

• The main components of an exhaust system in a light motor vehicle are the headlights, taillights, and brake lights.

• The main components of an exhaust system in a light motor vehicle are the steering wheel, pedals, and dashboard.

• The main components of an exhaust system in a light motor vehicle are the engine, transmission, and radiator.

Why is engine lubrication important for the proper functioning of a light motor vehicle?

• Proper lubrication increases friction and wear between moving parts

• Proper lubrication reduces friction and wear between moving parts, preventing overheating and prolonging the life of the engine.

• Overheating is not a concern for engines without proper lubrication

• Engine lubrication is not important for the proper functioning of a light motor vehicle

How do engine lubrication systems help in reducing friction and wear in a light motor vehicle?

• By reducing the amount of oil in the engine

• By using sand instead of oil for lubrication

• By providing a layer of oil between moving parts to reduce friction and wear.

• By increasing the weight of the vehicle

What are the different types of engine emission control systems used in light motor vehicles?

• Air conditioning system, Power steering system, Brake assist system

• Radiator, Alternator, Ignition coil

• Catalytic converter, Exhaust gas recirculation (EGR) system, Positive crankcase ventilation (PCV) system

• Turbocharger, Fuel injection system, Transmission control module

Explain the role of a catalytic converter in an engine emission control system.

• It increases harmful emissions by converting them into more harmful substances.

• It has no effect on reducing harmful emissions.

• It only reduces emissions from gasoline engines, not diesel engines.

• It reduces harmful emissions by converting them into less harmful substances.

What are the harmful emissions produced by an internal combustion engine and how are they controlled?

• Catalytic converters

• Spark plugs

• Exhaust pipes

• Air filters

How does an EGR (Exhaust Gas Recirculation) system work in reducing engine emissions?

• By increasing the combustion temperature

• By recirculating a portion of the engine's exhaust gas back into the combustion chamber to lower the combustion temperature.

• By releasing the exhaust gas directly into the atmosphere

• By reducing the amount of air entering the combustion chamber

What are the advantages of using a direct fuel injection system in a light motor vehicle?

• Higher maintenance costs and complexity

• Decreased fuel efficiency and power output

• Improved fuel efficiency and power output

• Increased emissions and pollution

Explain the function of a PCV (Positive Crankcase Ventilation) system in an engine.

• It helps to remove harmful gases and moisture from the crankcase of the engine.

• It increases the fuel consumption of the engine.

• It is used to regulate the tire pressure in the engine.

• It helps to cool down the engine during operation.