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Chemical Environmental Engineering Quiz 2

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Chemical Environmental Engineering Quiz 2

1 / 50

Industrial workers working in leather tanning & manufacturing units are prone to suffer from _____?

2 / 50

Growth of _______ is promoted by the presence of manganese in water?

3 / 50

Green house gases blanket/block the infrared radiation from earth?s surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect ?

4 / 50

Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of_________?

5 / 50

Limestone powder is injected during pulverised coal burning in boilers to _______ the flue gases?

6 / 50

In water treatment, alum [Al2(SO4)3] is used for the process of ___________?

7 / 50

Main pollutant present in automobile exhaust is__________?

8 / 50

Fresh domestic sewage is ________ in color?

9 / 50

In water treatment plant, zeolite process is used to remove the ______ of water?

10 / 50

High noise levels produced during operation of fans and compressors can be reduced by using___________?

11 / 50

Fluorosis is caused due to the presence of excessive amount of _______ in drinking water?

12 / 50

Global warming may result in ___________?

13 / 50

Lagooning process is mainly a means of the___________?

14 / 50

Fresh sewage is _______ in nature?

15 / 50

Inhalation of silica dust by human being causes _____?

16 / 50

Lagoons used for purification of polluted water________?

17 / 50

Hazardous/polluting chemical industries should have an ?exclusion zone? with a green belt and general public access prohibited around it, covering a radius of ______ metres?

18 / 50

From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about _________ ppm?

19 / 50

In large thermal power stations very fine particulates present in flue gas are removed by_____?

20 / 50

Higher concentration of nitrogen dioxide in atmospheric air causes_____?

21 / 50

Insufficient washing of sand grains in a rapid sand filter causes___________?

22 / 50

Infective bacteria in water is killed by the ______ process?

23 / 50

Inhalation of lead compounds present in the automobile exhausts (using leaded petrol) causes_________?

24 / 50

High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes______?

25 / 50

Green house effect is accentuated by_________?

26 / 50

Foul odour and bad taste of water is removed by treating with___________?

27 / 50

Exposure to chemicals having carcinogenic properties cause ______?

28 / 50

Hydrogen ion concentration in distilled water is_____?

29 / 50

For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than _______ ppm?

30 / 50

Exposure to small amount of _______ results in high blood pressure & heart disease in human beings?

31 / 50

Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes__________?

32 / 50

Irradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water in_____?

33 / 50

In sewage treatment, its sedimentation is speeded up by commonly adding___________?

34 / 50

Inhalation of silica dust causes a disease called___________?

35 / 50

In a sedimentation tank, the detention period for water ranges from ______ hours?

36 / 50

In troposphere (the weather domain), the temperature ?t? at height ?h? above the spa level in metres is given by (where, temperature at sea level is 15?C and t is in ?C ?

37 / 50

Inorganic impurities causing water pollution is ______?

38 / 50

Exposure to chemicals having carcinogenic properties cause_____?

39 / 50

Ionisation potential employed in the industrial electrostatic precipitator is of the order of________?

40 / 50

Iron & manganese present in the polluted water is removed by ___________?

41 / 50

High noise level in a chemical plant can be controlled by the__________?

42 / 50

Higher concentration of CO2 in atmosphere_______?

43 / 50

In sewage treatment, the detention period allowed for oxidation ponds ranges from ______ weeks?

44 / 50

Inhalation of silica dust by human being during hand drilling in mica mining, lead & zinc mining, silica refractory manufacture and in foundries causes_____?

45 / 50

Fine grit present in sewage is removed in the ______ during sewage treatment?

46 / 50

Exposure to SO2 containing chimney gases results in the___________?

47 / 50

Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes___________?

48 / 50

Fluorosis (a bone disease) is caused by the presence of high concentration of _____ in atmospheric air?

49 / 50

Foaming and priming in boiler operation can be reduced by reduction in _______ in feed water?

50 / 50

H2S present in gaseous stream can be removed by adsorption on _______?

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Chemical Engineering Basics Quiz 1
Chemical Engineering Basics Quiz 2
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