Q. No.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
(1) Particulate air pollutant
(2) Gaseous air pollutant
(3) Harmful gases
(4) All of these
The particulate matter in exhaust from industries can be removed by
(1) Electrostatic Precipitator
(2) Scrubber
(3) Both of these
(4) Cannot be removed
Which of the following is not true about electrostatic precipator?
(1) It can remove over 99 per cent particulate matter present in the exhaust from a thermal power plant
(2) Electrode wires maintained at thousand volts, which produce a corona that release electrons
(3) The protons are attached to dust particle give them a net positive charge
(4) The collecting plates attract the dust particles
Electrostatic Precipitator has
(1) An instruction of low velocity of air between the plates
(2) An instruction of high velocity of air between the plates to allow rapid fall of dust particles
(3) An instruction of no air between plates so that charge may not get disturbed
(4) Both A and C
Scrubber
(1) Can remove only sulphur dioxide
(2) Can remove gases like sulphur dioxide
(3) Can remove harmless gases
(4) Mix harmless gases with gaseous pollutants
In scrubber, exhaust is passed through
(1) A spray of water/lime
(2) A spray of electrons
(3) A spray of other harmless gases
(4) All of these
CPCB stands for
(1) Control Pollution Central Board
(2) Central Population Control Board
(3) Central Pollution Control Board
(4) Control Population Central Board
According to CPCB, Particulate size ------ or less in diameter are responsible for causing the greatest harm to human health.
1. 2.5 micrometer
2. 2.5 nanometer
3. 5 nanometer
4. 5 micrometer
The particulate matter cannot cause
(1) Breathing respiratory symptoms
(2) Irritation, premature death
(3) Inflammation and damage to the lungs
(4) Gastric ulcer and Rhinitis
In metro cities, which of the following is the major cause of atmospheric Pollution?
(1) Automobiles
(2) Population
(3) Industries
(4) All of these
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