Air Pollution and its Control
BIOXII16: ENVIRONMENTAL ISSUES

345118 The entire fleet of buses in Delhi were converted to \(\mathrm{CNG}\) from diesel. In reference to this, which one of the following statements is false?

1 The same diesel engine is used in CNG buses making the cost of conversion low
2 It is cheaper than diesel
3 It can not be adulterated like diesel
4 CNG burns more efficiently than diesel
BIOXII16: ENVIRONMENTAL ISSUES

345119 Select the incorrect statement.

1 Pollution is any desirable change in physical, chemical or biological characteristics of air, land, water or soil.
2 Agents that bring about undesirable change are called as pollutants
3 Human population size has grown slowly over the last hundred years
4 1 and 3
BIOXII16: ENVIRONMENTAL ISSUES

345120 Why is it necessary to remove sulphur from petroleum products?

1 To reduce the emission of sulphur dioxide in exhaust fumes
2 To increase efficiency of automobiles engines
3 To use sulphur removed from petroleum for commercial purposes
4 To increase the life span of engine silencers
BIOXII16: ENVIRONMENTAL ISSUES

345121 Statement A :
CNG burns most efficiently, unlike petrol or diesel, in the automobiles and very little of it is left unburnt.
Statement B :
The main problem with switching over to CNG is the difficulty of laying down pipelines to deliver \(\mathrm{CNG}\) through distribution points/ pumps and ensuring uninterrupted supply.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXII16: ENVIRONMENTAL ISSUES

345122 Statement A :
In India, the Air (Prevention and Control of Pollution) Act came into force in 1981, but was amended in 1987 to include noise as an air pollutant.
Statement B :
A brief exposure to extremely high sound level, \(150 \mathrm{~dB}\) or more generated by take off of a jet plane or rocket, may damage ear drums thus impairing hearing ability temporarily only.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXII16: ENVIRONMENTAL ISSUES

345118 The entire fleet of buses in Delhi were converted to \(\mathrm{CNG}\) from diesel. In reference to this, which one of the following statements is false?

1 The same diesel engine is used in CNG buses making the cost of conversion low
2 It is cheaper than diesel
3 It can not be adulterated like diesel
4 CNG burns more efficiently than diesel
BIOXII16: ENVIRONMENTAL ISSUES

345119 Select the incorrect statement.

1 Pollution is any desirable change in physical, chemical or biological characteristics of air, land, water or soil.
2 Agents that bring about undesirable change are called as pollutants
3 Human population size has grown slowly over the last hundred years
4 1 and 3
BIOXII16: ENVIRONMENTAL ISSUES

345120 Why is it necessary to remove sulphur from petroleum products?

1 To reduce the emission of sulphur dioxide in exhaust fumes
2 To increase efficiency of automobiles engines
3 To use sulphur removed from petroleum for commercial purposes
4 To increase the life span of engine silencers
BIOXII16: ENVIRONMENTAL ISSUES

345121 Statement A :
CNG burns most efficiently, unlike petrol or diesel, in the automobiles and very little of it is left unburnt.
Statement B :
The main problem with switching over to CNG is the difficulty of laying down pipelines to deliver \(\mathrm{CNG}\) through distribution points/ pumps and ensuring uninterrupted supply.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXII16: ENVIRONMENTAL ISSUES

345122 Statement A :
In India, the Air (Prevention and Control of Pollution) Act came into force in 1981, but was amended in 1987 to include noise as an air pollutant.
Statement B :
A brief exposure to extremely high sound level, \(150 \mathrm{~dB}\) or more generated by take off of a jet plane or rocket, may damage ear drums thus impairing hearing ability temporarily only.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXII16: ENVIRONMENTAL ISSUES

345118 The entire fleet of buses in Delhi were converted to \(\mathrm{CNG}\) from diesel. In reference to this, which one of the following statements is false?

1 The same diesel engine is used in CNG buses making the cost of conversion low
2 It is cheaper than diesel
3 It can not be adulterated like diesel
4 CNG burns more efficiently than diesel
BIOXII16: ENVIRONMENTAL ISSUES

345119 Select the incorrect statement.

1 Pollution is any desirable change in physical, chemical or biological characteristics of air, land, water or soil.
2 Agents that bring about undesirable change are called as pollutants
3 Human population size has grown slowly over the last hundred years
4 1 and 3
BIOXII16: ENVIRONMENTAL ISSUES

345120 Why is it necessary to remove sulphur from petroleum products?

1 To reduce the emission of sulphur dioxide in exhaust fumes
2 To increase efficiency of automobiles engines
3 To use sulphur removed from petroleum for commercial purposes
4 To increase the life span of engine silencers
BIOXII16: ENVIRONMENTAL ISSUES

345121 Statement A :
CNG burns most efficiently, unlike petrol or diesel, in the automobiles and very little of it is left unburnt.
Statement B :
The main problem with switching over to CNG is the difficulty of laying down pipelines to deliver \(\mathrm{CNG}\) through distribution points/ pumps and ensuring uninterrupted supply.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXII16: ENVIRONMENTAL ISSUES

345122 Statement A :
In India, the Air (Prevention and Control of Pollution) Act came into force in 1981, but was amended in 1987 to include noise as an air pollutant.
Statement B :
A brief exposure to extremely high sound level, \(150 \mathrm{~dB}\) or more generated by take off of a jet plane or rocket, may damage ear drums thus impairing hearing ability temporarily only.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXII16: ENVIRONMENTAL ISSUES

345118 The entire fleet of buses in Delhi were converted to \(\mathrm{CNG}\) from diesel. In reference to this, which one of the following statements is false?

1 The same diesel engine is used in CNG buses making the cost of conversion low
2 It is cheaper than diesel
3 It can not be adulterated like diesel
4 CNG burns more efficiently than diesel
BIOXII16: ENVIRONMENTAL ISSUES

345119 Select the incorrect statement.

1 Pollution is any desirable change in physical, chemical or biological characteristics of air, land, water or soil.
2 Agents that bring about undesirable change are called as pollutants
3 Human population size has grown slowly over the last hundred years
4 1 and 3
BIOXII16: ENVIRONMENTAL ISSUES

345120 Why is it necessary to remove sulphur from petroleum products?

1 To reduce the emission of sulphur dioxide in exhaust fumes
2 To increase efficiency of automobiles engines
3 To use sulphur removed from petroleum for commercial purposes
4 To increase the life span of engine silencers
BIOXII16: ENVIRONMENTAL ISSUES

345121 Statement A :
CNG burns most efficiently, unlike petrol or diesel, in the automobiles and very little of it is left unburnt.
Statement B :
The main problem with switching over to CNG is the difficulty of laying down pipelines to deliver \(\mathrm{CNG}\) through distribution points/ pumps and ensuring uninterrupted supply.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXII16: ENVIRONMENTAL ISSUES

345122 Statement A :
In India, the Air (Prevention and Control of Pollution) Act came into force in 1981, but was amended in 1987 to include noise as an air pollutant.
Statement B :
A brief exposure to extremely high sound level, \(150 \mathrm{~dB}\) or more generated by take off of a jet plane or rocket, may damage ear drums thus impairing hearing ability temporarily only.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXII16: ENVIRONMENTAL ISSUES

345118 The entire fleet of buses in Delhi were converted to \(\mathrm{CNG}\) from diesel. In reference to this, which one of the following statements is false?

1 The same diesel engine is used in CNG buses making the cost of conversion low
2 It is cheaper than diesel
3 It can not be adulterated like diesel
4 CNG burns more efficiently than diesel
BIOXII16: ENVIRONMENTAL ISSUES

345119 Select the incorrect statement.

1 Pollution is any desirable change in physical, chemical or biological characteristics of air, land, water or soil.
2 Agents that bring about undesirable change are called as pollutants
3 Human population size has grown slowly over the last hundred years
4 1 and 3
BIOXII16: ENVIRONMENTAL ISSUES

345120 Why is it necessary to remove sulphur from petroleum products?

1 To reduce the emission of sulphur dioxide in exhaust fumes
2 To increase efficiency of automobiles engines
3 To use sulphur removed from petroleum for commercial purposes
4 To increase the life span of engine silencers
BIOXII16: ENVIRONMENTAL ISSUES

345121 Statement A :
CNG burns most efficiently, unlike petrol or diesel, in the automobiles and very little of it is left unburnt.
Statement B :
The main problem with switching over to CNG is the difficulty of laying down pipelines to deliver \(\mathrm{CNG}\) through distribution points/ pumps and ensuring uninterrupted supply.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXII16: ENVIRONMENTAL ISSUES

345122 Statement A :
In India, the Air (Prevention and Control of Pollution) Act came into force in 1981, but was amended in 1987 to include noise as an air pollutant.
Statement B :
A brief exposure to extremely high sound level, \(150 \mathrm{~dB}\) or more generated by take off of a jet plane or rocket, may damage ear drums thus impairing hearing ability temporarily only.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.