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Test: Theory And Classification Of Filtration


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10 Questions MCQ Test Environmental Engineering | Test: Theory And Classification Of Filtration

Test: Theory And Classification Of Filtration for Chemical Engineering 2022 is part of Environmental Engineering preparation. The Test: Theory And Classification Of Filtration questions and answers have been prepared according to the Chemical Engineering exam syllabus.The Test: Theory And Classification Of Filtration MCQs are made for Chemical Engineering 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Theory And Classification Of Filtration below.
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Test: Theory And Classification Of Filtration - Question 1

 Which of the following statement is wrong regarding filtration?

Detailed Solution for Test: Theory And Classification Of Filtration - Question 1

Explanation: Filtration is a primary turbidity removal process.It also removes color, suspended solids and fine particle.

Test: Theory And Classification Of Filtration - Question 2

 In which action of filtration, particles coarser than the void size is arrested?

Detailed Solution for Test: Theory And Classification Of Filtration - Question 2

Explanation: In Mechanical Straining, particles coarser than the void size is arrested. The water passing the voids will be free from such particles.

Test: Theory And Classification Of Filtration - Question 3

 In which action of filtration, colloidal particles is removed?

Detailed Solution for Test: Theory And Classification Of Filtration - Question 3

Explanation: In the sedimentation action of filtration, colloidal particles arrested in the voids attract other finer particle, settle down in the voids and get removed.

Test: Theory And Classification Of Filtration - Question 4

Which is the first zone of purification in a sand bed?

Detailed Solution for Test: Theory And Classification Of Filtration - Question 4

Explanation: Schmutzdecke zone is the first zone of purification in a sand bed. It comes under the biological action of filtration. Schmutzdecke is known as the surface coating.

Test: Theory And Classification Of Filtration - Question 5

 In which action of filtration, removal of particulate matter takes place?

Detailed Solution for Test: Theory And Classification Of Filtration - Question 5

Explanation: Filter removes the particulate matter by electrostatic exchange where the charge of the filter medium neutralizes the charge of the floc and permitting it to be removed.

Test: Theory And Classification Of Filtration - Question 6

In which type of filter, rate of filtration is low?

Detailed Solution for Test: Theory And Classification Of Filtration - Question 6

Explanation: In Slow sand filter, rate of filtration is low and due to this they requires large land and are expensive to install.

Test: Theory And Classification Of Filtration - Question 7

 What is the color of the surface coating formed during the filtration process?

Detailed Solution for Test: Theory And Classification Of Filtration - Question 7

Explanation: The surface coating is formed by the reddish brown deposit of partially decomposed organic matter together with Iron, Alumina, Manganese and Silica.

Test: Theory And Classification Of Filtration - Question 8

 In the ________ zone of purification in filter media, bacteria oxidizes the organic matter completely.

Detailed Solution for Test: Theory And Classification Of Filtration - Question 8

Explanation: In Heterotrophic zone, bacteria multiplies in large number, breaks down not only the organic matter but also destroys each other to maintain a balance of life in the filter.

Test: Theory And Classification Of Filtration - Question 9

The filtration rate of a slow sand filter is _____ litres of water per square metre.

Detailed Solution for Test: Theory And Classification Of Filtration - Question 9

Explanation: The surface area of the slow sand filter lies between 50m2 to 1000m2 and its filtration rate lies between 100 to 200 litres of water per m2.

Test: Theory And Classification Of Filtration - Question 10

Identify the correct statement from the following options.

Detailed Solution for Test: Theory And Classification Of Filtration - Question 10

Explanation: Rapid sand filter is cheap and economical and its period of cleaning is 1-2 days. Neither the coagulation nor the skilled supervision is required in slow sand filter.

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