Take The General Water Treatment Questions!

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

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

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.

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.

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

Blending

Coagulation

Disinfection

Sedimentation

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.

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.

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

True

False

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.

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.

4. Which of the following are not the types of aerator?

Cone aeratos

Cascade aerators

Trap aerators

Spray aerators

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.

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.

5. 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;

Rock filter

Fine filter

Sand filter

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.

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.