An effective air-pollution control equipment is an attachment that electrically attracts pollutant particles in hot, escaping gases. It is known as:
A
an electric condenser
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B
a gas condenser
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C
an air purifier
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D
an electrostatic precipitator
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Solution
The correct option is D an electrostatic precipitator Electrostatic precipitator is a device that uses an electric charge to remove certain impurities such as solid particles liquid from air and ether gases. It is particularly used to remove particles and power generating stations.