Q. No.Catalytic converters are fitted into automobiles for reducing emission of poisonous gases. The converters are made up of metals namely
1. Fe, Cu and Rh
2. Pt, Pd and Rh
3. Al, Pd and Th
4. Fe, Cu and Pd
Identify 1., 2., 3. and 4. in the diagram
1. 1.–Dirty air; 2.– Water/lime spray ; 3.– Clean air; 4. – Particulate matter
2. 1.–Clean air; 2.– Water/lime spray ; 3.– Particulate matter; 4. – Dirty air
3. 1.–Water/lime spray; 2.– Particulate matter; 3.– Clean air; 4. – Dirty air
4. 1.–Particulate matter; 2.– Dirty air ; 3.– Clean air; 4. – Water/lime spray
Which is incorrect about electrostatic precipitator (ESP)?
1. Corona produces electrons
2. Collecting plates are grounded, so use to attract the charged dust particle
3. Velocity of air between the plates must be low
4. Electrode wires that are maintained at several thousand volts produces corona
According to Euro-III norms, sulphur should be controlled at ______ in diesel and _____ in petrol
1. 350 ppm; 50 ppm
2. 50 ppm; 150 ppm
3. 50 ppm; 50 ppm
4. 350 ppm; 150 ppm
Pollution:
1. Any undesirable change in physical characteristics of air, land water and soil
2. Any undesirable change in biological characteristics of air, land water and soil
3. Any undesirable change in physical, chemical and biological characteristics of air, land water and soil
4. Any undesirable change in physical and chemical characteristics of air, land water and soil
Agents that bring undesirable change in biological, physical and chemical environment is called
(1) Pollutant
(2) Bioparcy
(3) Bioinformatics
(4) Biomagnification
The act to control environmental pollution is passed by Government of India is
(1) Environment Pollution Act-1981
(2) Environment Pollution Act-1986
(3) Environment Protection Act-1986
(4) Environment Protection Act-1981
Environment Protection Act protects and improves the quality of
(1) Air
(2) Water
(3) Soil
(4) All of these
Harmful effects of Air pollutants depend upon
(1) Organism exposed
(2) Duration of exposure
(3) Concentration of pollutants
(4) All of these
Smokestacks of thermal power plants, smelters and other industries release
(1) Particulate air pollutant
(2) Gaseous air pollutant
(3) Harmful gases
(4) All of these
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