O2 Sensor Management Quiz

What does Closed Loop O2 sensor management involve?

• Adjusting the air-fuel mixture based on historical data

• Real-time monitoring of oxygen levels in the exhaust to adjust the air-fuel mixture

• Ignoring the oxygen levels in the exhaust

• Changing the vehicle's speed to control emissions

When does Open Loop O2 sensor management typically occur?

• When the vehicle is traveling at high speeds

• When the vehicle is idling

• When the oxygen sensor is malfunctioning

• When the vehicle is being refueled

What is the primary function of EGR valves?

• To increase the oxygen content in the exhaust gases

• To recycle a portion of exhaust gases to lower combustion temperatures

• To filter particulate matter from the exhaust

• To add fragrance to the exhaust gases

What is an advantage of internal EGR mentioned in the text?

• It requires additional external devices

• It is less compact than external EGR systems

• It is more complicated to control

• Its compactness because it works with a system of engine valves and ports instead of external devices

What is the primary function of EVAP systems?

• To increase fuel efficiency

• To capture and store fuel vapors from the fuel tank

• To cool down the engine

• To monitor the fuel level in the tank

What is a disadvantage of EVAP systems?

• They are easy to tamper with

• They reduce the vehicle's horsepower

• They are a simple system that is easy to understand

• They can be challenging to diagnose and repair when faults occur

What is the advantage of a catalytic converter?

• Increases fuel efficiency.

• Reduces engine noise.

• Converts harmful pollutants into less harmful emissions.

• Enhances vehicle speed.

What is a disadvantage of using catalytic converters?

• They increase carbon dioxide emissions.

• They require precious metals like platinum, palladium, and rhodium.

• They decrease the lifespan of the engine.

• They are easily recyclable.

What does a catalytic converter do to the engine emissions?

• It increases the amount of nitrous oxide and carbon monoxide.

• It filters out particulate matter.

• It turns the engine emissions from nitrous oxide and carbon monoxide.

• It converts engine emissions into water, carbon dioxide, and nitrogen.

What is the advantage of using Diesel Particulate Filters (DPF)?

• Increases fuel efficiency

• Traps and removes harmful diesel particulate matter, reducing air pollution

• Requires no maintenance

• Enhances vehicle performance