QUIZ : WATER QUALITY CONTROL

kanwar July 10, 2024No Comments

Water Quality Control

Test your knowledge on water quality control! This quiz covers key concepts in water treatment, testing, and regulations to ensure safe drinking water.

1 / 10

1. Which of the following is an example of a secondary drinking water standard?

A. Copper at 1.3 mg/L

B. Arsenic at 0.010 mg/L

C. Lead at 0.015 mg/L

D. Nitrate at 10 mg/L

2 / 10

2. In a water treatment plant, what is the primary purpose of a contact chamber for disinfection?

A. To increase total dissolved solids

B. To reduce water recovery rates

C. To enhance the taste and color of water

D. To inactivate pathogens like Giardia

3 / 10

3. What is the primary function of lime in the lime-soda ash softening process?

A. To enhance microbial activity

B. To remove carbonate hardness

C. To increase total dissolved solids

D. To lower the pH of the water

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4. Why is it important to consider the recovery rate of a membrane system in water treatment?

A. To reduce the energy consumption

B. To maximize the volume of permeate produced

C. To minimize the use of chemicals

D. To optimize the rejection values

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5. Which of the following is a characteristic of volatile organic chemicals (VOCs)?

A. They are easily removed through filtration

B. They are resistant to chemical oxidation

C. They include degreasing agents and dyes

D. They have low vaporization rates

6 / 10

6. What is the primary purpose of a primary clarifier in a wastewater treatment plant?

A. To disinfect the wastewater

B. To separate solid particles from the water

C. To filter out dissolved organic compounds

D. To remove heavy metals

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7. What does the rejection value of a membrane filtration system indicate?

A. The energy consumption of the system

B. The flow rate of the permeate stream

C. The fraction of the target contaminant removed

D. The pH level of the influent water

8 / 10

8. When conducting jar tests for flocculation studies, what is counted to assess the process?

A. Dissolved organic compounds

B. Microbial colonies

C. Total number of particles

D. Turbidity levels

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9. Why is the detection of pathogens like Giardia and Cryptosporidium challenging in water testing?

A. They do not occur in water sources

B. They are easily removed through filtration

C. They are resistant to chemical disinfectants

D. They have a short survival time outside their hosts

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10. What is the primary benefit of using a secondary clarifier in a wastewater treatment plant?

A. To separate settled solids from the water

B. To introduce additional chemicals for treatment

C. To reduce the flow rate of the influent water

D. To increase dissolved oxygen levels

Your score is

The average score is 54%

Author

kanwar

Kanwar Bhan Godara UGC NET JRF Environmental Science
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Last updated on July 10, 2024

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