Which of the following are NOT the reason why we need water treatment?

To make people angry with the source of water

To remove contaminants that makes the water look, taste and smell bad

To remove those contaminants that are harmful for health

To make people angry with the source of water

To provide a safe source of water to drink and use

Quiz: Take The General Water Treatment Questions!

1.

Which of the following are NOT the reason why we need water treatment?
- A.
  
  To remove contaminants that makes the water look, taste and smell bad
- B.
  
  To remove those contaminants that are harmful for health
- C.
  
  To make people angry with the source of water
- D.
  
  To provide a safe source of water to drink and use
Correct Answer
C. To make people angry with the source of water

Explanation
The correct answer is "To make people angry with the source of water." This answer does not align with the reasons for needing water treatment. Water treatment is necessary to remove contaminants that affect the appearance, taste, and smell of water, as well as to eliminate harmful substances that can pose health risks. The goal of water treatment is to provide a safe and clean source of water for drinking and other uses, not to evoke negative emotions in people.

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2.

There are two (2) types of contaminants that are present in an untreated water, which is aesthetic and health-related contaminants.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The statement is true because untreated water can contain both aesthetic and health-related contaminants. Aesthetic contaminants refer to substances that affect the taste, odor, or appearance of water, such as minerals, algae, or organic matter. Health-related contaminants, on the other hand, can include bacteria, viruses, parasites, chemicals, or heavy metals that can pose a risk to human health if consumed. Therefore, it is important to treat water to remove these contaminants and ensure its safety for drinking and other uses.

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3.

Which of the following are not the process of water treatment?
- A.
  
  Blending
- B.
  
  Coagulation
- C.
  
  Disinfection
- D.
  
  Sedimentation
Correct Answer
A. Blending

Explanation
Blending is not a process of water treatment because it refers to the mixing of different water sources or types, rather than the actual treatment methods used to remove contaminants and impurities from water. The other options listed - coagulation, disinfection, and sedimentation - are all common processes used in water treatment to remove particles, kill microorganisms, and separate solids from the water.

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4.

Screening is the process of removing debris such as woods, leaves, aquatic plants, rubbish and others. In this process, it consists of two (2) types of filter, which is;
- A.
  
  Rock filter
- B.
  
  Fine filter
- C.
  
  Sand filter
Correct Answer
B. Fine filter

Explanation
The given correct answer is "Fine filter". In the screening process, there are two types of filters used: rock filter and fine filter. The rock filter is likely used to remove larger debris such as woods and rubbish, while the fine filter is used to remove smaller particles like leaves and aquatic plants. The sand filter is not mentioned in the options, so it is not the correct answer.

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5.

Which of the following are not the types of aerator?
- A.
  
  Cone aeratos
- B.
  
  Cascade aerators
- C.
  
  Trap aerators
- D.
  
  Spray aerators
Correct Answer
C. Trap aerators

Explanation
Trap aerators are not a type of aerator. Aerator is a device that introduces air into a liquid, typically water, to increase oxygen levels. Cone aerators, cascade aerators, and spray aerators are all types of aerators commonly used in various applications. However, trap aerators do not exist as a recognized type of aerator.

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Quiz: Take The General Water Treatment Questions!

Which of the following are NOT the reason why we need water treatment?

There are two (2) types of contaminants that are present in an untreated water, which is aesthetic and health-related contaminants.

Which of the following are not the process of water treatment?

Screening is the process of removing debris such as woods, leaves, aquatic plants, rubbish and others. In this process, it consists of two (2) types of filter, which is;

Which of the following are not the types of aerator?