Environmental Engineering MCQ Questions & Answers | Chemical Engineering Page-1 section-4

Section 1 Section 2 Section 3 Section 4

1.
TLV of lead for public sewer/waste water is about __________ ppm.

A. 1

B. 25

C. 150

D. 650

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2.
Radioactive substances present in the polluted water stream can be removed by

A. Biological oxygen treatment

B. Coagulation and filtration

C. Adsorption in ion exchange materials

D. None of these

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3.
The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant?

A. Chlorine

B. Alkalis

C. Benzene hexachloride

D. Alkyl benzene sulphonate (ABS)

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4.
Which of the following is not an air pollutant?

A. Ozone

B. Carcinogens

C. Pesticides

D. Metallic powders

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5.
Presence of excess flourine in water causes

A. Dental cavity

B. Tooth decay

C. Fluorosis

D. Respiratory disease

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6.
Higher concentration of nitrogen dioxide in atmospheric air causes

A. Cancer

B. Bronchitis

C. Asphyxiation

D. Corrosion

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7.
Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of N₂ in contaminated air at which it acts as a natural asphyxant is ≥ __________ percent.

A. 84

B. 88

C. 80

D. 92

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Environmental Engineering MCQ Questions & Answers | Chemical Engineering

1. TLV of lead for public sewer/waste water is about __________ ppm.

Answer & Solution

2. Radioactive substances present in the polluted water stream can be removed by

Answer & Solution

3. The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant?

Answer & Solution

4. Which of the following is not an air pollutant?

Answer & Solution

5. Presence of excess flourine in water causes

Answer & Solution

6. Higher concentration of nitrogen dioxide in atmospheric air causes

Answer & Solution

7. Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of N2 in contaminated air at which it acts as a natural asphyxant is ≥ __________ percent.

Answer & Solution

Read More Section(Environmental Engineering in CE)

1.
TLV of lead for public sewer/waste water is about __________ ppm.

2.
Radioactive substances present in the polluted water stream can be removed by

3.
The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant?

4.
Which of the following is not an air pollutant?

5.
Presence of excess flourine in water causes

6.
Higher concentration of nitrogen dioxide in atmospheric air causes

7.
Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of N₂ in contaminated air at which it acts as a natural asphyxant is ≥ __________ percent.