Which of the following statements about electric precipitators is false?(a) They are used to remove dust by providing a strong electric field(b) Their initial installation cost is high(c) Their operational cost is low(d) Dust particles get attached to the positive electrodeI have been asked this question in an interview for job.The question is from Systems and Essentials of Air Conditioning System topic in portion Air Conditioning, Thermal Insulation, Stones & Ferrous Metals of Construction & Building Materials

Which of the following statements about electric precipitators is fals

1.	Which of the following statements about electric precipitators is false?(a) They are used to remove dust by providing a strong electric field(b) Their initial installation cost is high(c) Their operational cost is low(d) Dust particles get attached to the positive electrodeI have been asked this question in an interview for job.The question is from Systems and Essentials of Air Conditioning System topic in portion Air Conditioning, Thermal Insulation, Stones & Ferrous Metals of Construction & Building Materials
Answer» The CORRECT choice is (d) Dust particles get attached to the positive electrode The best I can explain: Electric precipitators are used to REMOVE dust by providing a strong electric field. In an electric precipitator, the dust particles get attached to the negative electrode. Their INITIAL INSTALLATION cost is HIGH but their operational cost is low.

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