Page No. 52
Dust collection efficiency of a cyclone separator depends upon its______________?
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The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is_________________?
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Main pollutants released from iron & steel industry is__________________?
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A shallow pond in which the sewage is retained and biologically treated is called__________________?
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Inhalation of silica dust causes a disease called__________________?
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Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called__________________?
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World environment day is observed every year on the 5th of___________________?
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Foul odour and bad taste of water is removed by treating with__________________?
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