1. Which emission standard was the first to be implemented in India?
a) Bharat I
b) Bharat II
c) Bharat III
d) Bharat IV
Answer: a) Bharat I
Explanation: Bharat I emission standards were the first set of vehicular emission norms introduced in India in the year 2000. They aimed to regulate the emissions from vehicles to reduce air pollution.
2. Which of the following emission standards is equivalent to Euro II norms?
a) Bharat II
b) Bharat III
c) Bharat IV
d) Bharat V
Answer: a) Bharat II
Explanation: Bharat II emission standards, implemented in 2005, are equivalent to Euro II norms in terms of regulating emissions from vehicles, including nitrogen oxides (NOx), carbon monoxide (CO), hydrocarbons (HC), and particulate matter (PM).
3. Which emission standard is the current standard in India as of 2024?
a) Bharat IV
b) Bharat V
c) Bharat VI
d) Euro V
Answer: c) Bharat VI
Explanation: Bharat VI emission standards were introduced in India in 2020. They are equivalent to Euro VI norms and aim to significantly reduce harmful emissions from vehicles, aligning with global environmental standards.
4. Which of the following pollutants are regulated by emission standards for automotive vehicles?
a) Carbon dioxide (CO2)
b) Nitrogen dioxide (NO2)
c) Sulfur dioxide (SO2)
d) All of the above
Answer: b) Nitrogen dioxide (NO2)
Explanation: Emission standards for automotive vehicles regulate pollutants such as nitrogen oxides (NOx), carbon monoxide (CO), hydrocarbons (HC), and particulate matter (PM), among others. Nitrogen dioxide (NO2) is one of the pollutants targeted for reduction.
5. What is the primary purpose of catalytic converters in automotive vehicles?
a) To increase fuel efficiency
b) To reduce engine noise
c) To control emissions
d) To improve vehicle handling
Answer: c) To control emissions
Explanation: Catalytic converters are installed in automotive vehicles to reduce the emission of harmful pollutants such as carbon monoxide (CO), nitrogen oxides (NOx), and hydrocarbons (HC) by catalyzing their conversion into less harmful substances.
6. Which of the following fuel quality standards is crucial for reducing emissions from vehicles?
a) Octane rating
b) Sulfur content
c) Cetane number
d) Vapor pressure
Answer: b) Sulfur content
Explanation: The sulfur content in fuel directly impacts the emission of sulfur dioxide (SO2) and other pollutants from vehicles. Lower sulfur content in fuel leads to cleaner emissions and better air quality.
7. What is the purpose of environmental management systems for automotive vehicles?
a) To increase vehicle speed
b) To improve fuel efficiency
c) To minimize environmental impact
d) To enhance passenger comfort
Answer: c) To minimize environmental impact
Explanation: Environmental management systems for automotive vehicles are designed to minimize the negative environmental impact of vehicle manufacturing, operation, and disposal by implementing practices that reduce pollution and resource consumption.
8. Which of the following is NOT a modern trend in automotive engine efficiency and emission control?
a) Hybridization
b) Downsizing
c) Turbocharging
d) Increasing emissions
Answer: d) Increasing emissions
Explanation: Modern trends in automotive engine efficiency and emission control focus on technologies such as hybridization, downsizing, and turbocharging to improve fuel efficiency and reduce emissions, rather than increasing emissions.
9. What role do fuel additives play in emission control for automotive vehicles?
a) They increase greenhouse gas emissions
b) They reduce engine performance
c) They improve fuel combustion efficiency
d) They increase fuel consumption
Answer: c) They improve fuel combustion efficiency
Explanation: Fuel additives are chemicals added to fuel to enhance combustion efficiency, which can lead to reduced emissions of pollutants such as carbon monoxide (CO), nitrogen oxides (NOx), and hydrocarbons (HC) from automotive vehicles.
10. Which of the following emission standards places stricter limits on pollutants compared to the others?
a) Bharat I
b) Bharat II
c) Bharat IV
d) Bharat VI
Answer: d) Bharat VI
Explanation: Bharat VI emission standards impose the strictest limits on pollutants among the options listed, aligning with global standards such as Euro VI and aiming to significantly reduce harmful emissions from automotive vehicles.