EXAMIANS
Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases.
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Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid ilow control. It is caused due to
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Black smoke coming out of the chimney of a furnace is an indication of the use of __________ in the furnace.
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__________ can not control the noise pollution.
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Foaming and priming in boiler operation can be reduced by reduction in __________ in feed water.
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As compared to rapid sand filters, slow sand filters give<br/>(i) Slower filtration rate<br/>(ii) Higher filtration rate<br/>(iii) Lesser efficiency in removal of bacteria<br/>(iv) Higher efficiency in removal of bacteria<br/>The correct answer is
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Ionisation potential employed in the industrial electrostatic precipitator is of the order of
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Which of the following pollutants is absent in the emissions from a fertiliser plant ?
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'Pneumoconiosis' is a disease caused by the inhalation of __________ dust.
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Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes
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