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Test: Types Of Settling Tanks - Civil Engineering (CE) MCQ


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5 Questions MCQ Test Environmental Engineering - Test: Types Of Settling Tanks

Test: Types Of Settling Tanks for Civil Engineering (CE) 2024 is part of Environmental Engineering preparation. The Test: Types Of Settling Tanks questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Types Of Settling Tanks MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Types Of Settling Tanks below.
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Test: Types Of Settling Tanks - Question 1

 How many types of sedimentation tanks are there on the basis of method of operation?

Detailed Solution for Test: Types Of Settling Tanks - Question 1

Explanation: There are two types sedimentation tanks on the basis of method of operation, namely Fill and draw type and Continuous flow type.

Test: Types Of Settling Tanks - Question 2

 In which type of sedimentation, the flocculent suspension of the intermediate concentration takes place?

Detailed Solution for Test: Types Of Settling Tanks - Question 2

Explanation: In type III sedimentation, the inter-particle forces hold the particle together and the flocculent suspension of the intermediate concentration takes place.

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Test: Types Of Settling Tanks - Question 3

In which type of sedimentation,the flocculent suspension of high concentration takes place?

Detailed Solution for Test: Types Of Settling Tanks - Question 3

Explanation: In type IV sedimentation,the flocculent suspension of high concentration takes place and particles comes in contact with each other resulting in the formation of structure.

Test: Types Of Settling Tanks - Question 4

 When the impurities are separated by the gravitation of settling particles, the operation is called ______

Detailed Solution for Test: Types Of Settling Tanks - Question 4

Explanation: In plain sedimentation, the impurities are separated from a suspending fluid by use of natural forces like gravitational forces.

Test: Types Of Settling Tanks - Question 5

What is the settling velocity of the particle in the wastewater if its diameter is 2 * 10-3cm. Given G=2.65, viscosity v=8 * 10-3cm2/Sec? 

Detailed Solution for Test: Types Of Settling Tanks - Question 5

Explanation: Settling velocity of the particle in wastewater is given by vs=g (G-1) d2/18v
Specific gravity G=1, g=981cm2/Sec, viscosity v=8 * 10-3cm2/Sec
vs = 981 * (2.65-1) * 0.002 * 0.002/(18 * 0.008) = 0.13cm/Sec.

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