Self Evaluation Quiz - Water Treatment Processes

10 Questions | By Richard4u | Last updated: Mar 22, 2022 | Total Attempts: 137

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Quiz 1

Questions and Answers

1.

The process of destabilization of colloidal particles by charge neutralization in water treatment is referred to as
- A.
  
  Clarification
- B.
  
  Flocculation
- C.
  
  Coagulation
- D.
  
  Sedimentation
2.

Which of the following water treatment processes uses naturally occurring biological activity to clean drinking water?
- A.
  
  Pressure filtration
- B.
  
  Rapid sand filtration
- C.
  
  Slow sand filtration
- D.
  
  Membrane filtration
3.

The purpose of screening during water intake for treatment is to
- A.
  
  Remove odour-producing compounds
- B.
  
  Prevent scaling and corrosion
- C.
  
  Remove disease-causing organisms from raw water
- D.
  
  Protect pumps and conduits from blockage
4.

All the following processes can remove solids from water except
- A.
  
  Filtration
- B.
  
  Sedimentation
- C.
  
  Aeration
- D.
  
  Screening
5.

Settling of particulate matter in water without the aid of chemicals is referred to as
- A.
  
  Sedimentation
- B.
  
  Induced sedimentation
- C.
  
  Plain sedimentation
- D.
  
  Precipitation
6.

The World Health Organisation is responsible for establishing drinking water standards for public health protection worldwide.
- A.
  
  True
- B.
  
  False
7.

In water treatment, the characteristics of raw water is usually not considered before selecting a treatment method.
- A.
  
  True
- B.
  
  False
8.

The range of unit processes and operations in a conventional water treatment plant is usually arranged in series.
- A.
  
  True
- B.
  
  False
9.

Intake structures for water treatment are always required to operate under gravity to reduce cost.
- A.
  
  True
- B.
  
  False
10.

A floating or pontoon type intake structure for abstracting raw water can be classified as a variable intake structure.
- A.
  
  True
- B.
  
  False