Environmental Engineering in CE As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m³.(μg-microgram) 750 800 90 10 750 800 90 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is a secondary air pollutant? Sulphur dioxide Nitrogen dioxide Dust particles Photochemical smog Sulphur dioxide Nitrogen dioxide Dust particles Photochemical smog ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE White smoke coming out of the chimney of a furnace indicates the use of Gaseous fuel in the furnace Very high excess air Liquid fuel in the furnace Low excess air Gaseous fuel in the furnace Very high excess air Liquid fuel in the furnace Low excess air ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a source of ozone emission in the atmosphere? Dermatological photo-therapy equipments Refrigerators High voltage electrical equipments Xerox machines Dermatological photo-therapy equipments Refrigerators High voltage electrical equipments Xerox machines ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE If the coli form bacteria is present in a sample of water, then the coli-form test to be conducted is(i) Presumptive coli-form test(ii) Confirmed coli-form test(iii) Completed coli-form test All (i), (ii) and (iii) Both (i) and (iii) Both (i) and (ii) Only (i) All (i), (ii) and (iii) Both (i) and (iii) Both (i) and (ii) Only (i) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a natural source of air pollution? None of these Volcanic eruptions and lightening discharges Biological decay of vegetable matter Photochemical oxidation of organic matter None of these Volcanic eruptions and lightening discharges Biological decay of vegetable matter Photochemical oxidation of organic matter ANSWER DOWNLOAD EXAMIANS APP
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