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प्रश्न
Discuss briefly about Catalytic converter
उत्तर १
Catalytic converter: - Catalytic converters are devices fitted in automobiles to reduce vehicular pollution. These devices contain expensive metals such as platinum, palladium, and rhodium that act as catalysts. As the vehicular discharge passes through the catalytic converter, the unburnt hydrocarbons present in it get converted into carbon dioxide and water. Carbon monoxide and nitric oxide released by catalytic converters are converted into carbon dioxide and nitrogen gas (respectively)
उत्तर २
Catalytic converter : Catalytic converter ‘are used to reduce emission of poisonous gases like nitrogen oxides, carbon monoxide & un reacted hydrocarbon in automotive emission. It is made of platinum, palladium and rhodium and is used as catalyst. It converts unbumt hydrocarbons into CO2. The only precaution required is not to use gasoline having lead as lead inactivates the catalysts of the converter.
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संबंधित प्रश्न
Give the effects of air pollutants on human health
Mention two advantages for preferring CNG over diesel as an automobile fuel.
Name any two places where it is essential to install electrostatic precipitators. Why is it required to do so?
Looking at the deteriorating air quality because of air pollution in many cities of the country, the citizens are very much worried and concerned about their health. The doctors have declared the health emergency in the cities where the air quality is very severely poor.
1) Mention any two major causes of air pollution.
2) Write any two harmful effects of air pollution to plants and humans.
3) As a captain of your school Eco-club, suggest any two programmes you would plan to organise in the school so as to bring awareness among the students on how to check air pollution in and around the school.
Short answer type question
How does CO cause giddiness and exhaustion?
Short answer type question
Name two types of particulate pollutants found in the air. Add a note on ill effects of the same on human health.
The level of air pollution is very high in a city. Suggest any four measures which should be taken by the government to control it.
Acceptable noise pollution levels in residential areas of India ranges between ______.
Electrostatic precipitators are used to control
According to the Central Pollution Control Board, the diameter of particles that are responsible for causing great harm to human health is ______.
In which year was the Air (Prevention and Control of Pollution) Act amended to include noise as air pollution.
List any two adverse effects of particulate matter on human health.
Is it true that carpets and curtains/drapes placed on the floor or wall surfaces can reduce noise level. Explain briefly?
It is a common practice to plant trees and shrubs near the boundary walls of buildings. What purpose do they serve?
How does an electrostatic precipitator work?
Which device is used to clean both dust and gases from polluted air?
Brick kilns give out both gaseous and particulate pollutants.
Name any four ways to control vehicular air pollution.
Match the following and choose the correct option.
| Column I | Column II |
| A. Environment Protection Act | i. 1974 |
| B. Air Prevention & Control of Pollution Act | ii. 1987 |
| C. Water Act | iii. 1986 |
| D. Amendment of Air Act to include noise as an air pollutant | iv. 1981 |
