Q. No.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
(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
To stop, automobile based environmental pollution, which of the following is not going to be a helpful measure?
(1) Proper maintenance of automobile
(2) Use of lead free petrol or diesel
(3) Catalytic Converters
(4) Scrubber
Which of the following is not a metal of catalytic converter?
(1) Platinum
(2) Palladium
(3) Rhodium
(4) Molybdenum
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