Test Your Knowledge on Vehicular Emissions and Air Pollution

kanwar September 24, 20241

Take our engaging quiz to discover how much you know about the link between vehicular emissions and air pollution. Learn about the impact of various pollutants, the health risks involved, and the steps we can take to mitigate this growing problem. Challenge yourself and become a part of the solution!

Quiz: Vehicular Emission and Air Pollution

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1. Which pollutant, primarily from vehicle emissions, can lead to the formation of ground-level ozone?

Lead (Pb)

Volatile Organic Compounds (VOCs)

Sulfur dioxide (SO2)

Carbon dioxide (CO2)

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2. If a vehicle fails an emissions test due to high levels of hydrocarbons (HC) and carbon monoxide (CO), but the NOx levels are within limits, which component might be malfunctioning?

Diesel Oxidation Catalyst (DOC)

Three-way Catalytic Converter (for gasoline engines)

Diesel Particulate Filter (DPF)

Selective Catalytic Reduction (SCR)

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3. What technology is primarily used in diesel engines to reduce NOx emissions?

Selective Catalytic Reduction (SCR)

Lean NOx Trap (LNT)

Exhaust Gas Recirculation (EGR)

Diesel Particulate Filter (DPF)

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4. What would happen if you mistakenly filled a gasoline engine car with high-cetane diesel fuel?

The car would run more efficiently due to the higher energy content of diesel.

The engine would produce excessive smoke and could be severely damaged.

The fuel would burn cleaner with lower emissions.

The engine would experience knock due to premature ignition.

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5. Which of the following best describes why electric vehicles (EVs) are considered to have lower “tailpipe” emissions?

They can be charged at home reducing fuel transport emissions.

They use cleaner fuel sources.

They have regenerative braking systems

They produce no exhaust from an internal combustion engine.

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6. What does the octane number of gasoline primarily measure?

The fuel's ability to resist engine knock in spark-ignition engines.

The energy content of the fuel.

The fuel's purity.

The fuel's combustion speed.

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7. Why might a vehicle equipped with a modern emission control system experience decreased fuel efficiency when the DPF is clogged?

The ECU reduces engine power to protect the DPF.

The catalytic converter stops functioning when the DPF is clogged.

The engine has to work harder due to increased backpressure in the exhaust system.

The vehicle automatically injects more fuel to cool down the engine.

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8. Which of the following would be a typical cetane number for high-quality diesel fuel?

100

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9. Which of the following pollutants from vehicle exhaust is not directly reduced by a catalytic converter?

Nitrogen oxides (NOx)

Carbon monoxide (CO)

Particulate Matter (PM)

Hydrocarbons (HC)

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10. Which of the following best describes the primary function of a Diesel Particulate Filter (DPF)?

To trap and remove particulate matter from the exhaust.

To convert NOx into nitrogen and water.

To reduce the amount of carbon monoxide in the exhaust.

To increase the oxygen content for better combustion.

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11. Which statement about Selective Catalytic Reduction (SCR) is false?

SCR uses diesel exhaust fluid (DEF) to reduce NOx emissions.

The SCR system can operate effectively at lower exhaust temperatures than a DPF regeneration cycle

SCR can function independently of the diesel particulate filter

SCR converts NOx into nitrogen, water, and sometimes CO2.

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12. Why might a diesel engine run poorly with a low cetane number fuel?

It increases the engine's power output.

It allows for better fuel economy due to slower burn rates.

It reduces the amount of NOx emissions

It leads to incomplete combustion and longer ignition delay.

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13. In the context of vehicle emissions, what does the term “EVAP” refer to?

Evaporative Emissions Control

Electric Vehicle Acceleration Performance

Exhaust Volume Air Pressure

Emission Velocity Adjustment Procedure

Your score is

The average score is 53%

Author

kanwar

Kanwar Bhan Godara UGC NET JRF Environmental Science
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Quiz Environmental Science UGC NET Environmental Science

Last updated on September 24, 2024

kanwar

Kanwar Bhan Godara UGC NET JRF Environmental Science

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