Sedimentation MCQs : Here you will find MCQ Questions related to "Sedimentation" in Environmental Engineering. These Sedimentation MCQ Questions Will help you to improve your Environmental Engineering knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations.
Question 1
______________ is the process of allowing particles in suspension in water to settle out of the suspension under the effect of gravity.
A. Sedimentation
B. Water Demand
C. Population Forecasting
D. Aerators
Question 2
The particles that settle out from the suspension become sediment, and in water treatment is known as?
A. sediment
B. thickening
C. sludge
D. consolidation
Question 3
Which of the following is not a methods for applying sedimentation?
A. horizontal flow
B. radial flow
C. inclined plate
D. None of the above
Question 4
How many basic forms of sedimentation are there?
A. 1
B. 2
C. 3
D. 4
Question 5
When impurities are separated by the gravitation of settling particles, the operation is called _____
A. Sedimentation with coagulant
B. Plain sedimentation
C. Secondary sedimentation
D. Disinfection
Question 6
In which type of sedimentation, flocculent suspension of intermediate concentration takes place?
A. Type I sedimentation
B. Type II sedimentation
C. Type III sedimentation
D. Type IV sedimentation
Question 7
The average time required by water to pass through the settling tank is called _______
A. Detention time
B. Mean Time
C. Time of flow
D. Flowing through period
Question 8
Range of Displacement efficiency in the plain sedimentation tank is ___________
A. 0.25-0.5
B. 0.1-0.2
C. 0.5-0.8
D. 0.3-0.6
Question 9
What is formed when coagulant is added to water?
A. Scum
B. Soap
C. Bubbles
D. Floc
Question 10
What is the dimension formula of mean velocity gradient?
A. 1/T
B. 1/T2
C. T
D. T2