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Test: Types Of Unit Operations - Civil Engineering (CE) MCQ


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10 Questions MCQ Test Environmental Engineering - Test: Types Of Unit Operations

Test: Types Of Unit Operations for Civil Engineering (CE) 2024 is part of Environmental Engineering preparation. The Test: Types Of Unit Operations questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Types Of Unit Operations 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 Unit Operations below.
Solutions of Test: Types Of Unit Operations questions in English are available as part of our Environmental Engineering for Civil Engineering (CE) & Test: Types Of Unit Operations solutions in Hindi for Environmental Engineering course. Download more important topics, notes, lectures and mock test series for Civil Engineering (CE) Exam by signing up for free. Attempt Test: Types Of Unit Operations | 10 questions in 25 minutes | Mock test for Civil Engineering (CE) preparation | Free important questions MCQ to study Environmental Engineering for Civil Engineering (CE) Exam | Download free PDF with solutions
Test: Types Of Unit Operations - Question 1

How many types of aerators are commonly used in the treatment of wastewater?

Detailed Solution for Test: Types Of Unit Operations - Question 1

Explanation: There are 4 types of aerators namely Gravity aerators, Spray aerators, Diffusers and Mechanical aerators.

Test: Types Of Unit Operations - Question 2

 Organic contaminants are removed from the wastewater by

Detailed Solution for Test: Types Of Unit Operations - Question 2

Explanation: Organic contaminants are removed from the wastewater by the attraction and accumulation of one substance on the surface of another.

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Test: Types Of Unit Operations - Question 3

 By which process, odor producing substances is oxidized?

Detailed Solution for Test: Types Of Unit Operations - Question 3

Explanation: By addition of chlorine dioxide to wastewater, odor producing substances is oxidized.

Test: Types Of Unit Operations - Question 4

Which of the following process is used to remove the colloidal particles from the effluent?

Detailed Solution for Test: Types Of Unit Operations - Question 4

Explanation: Chemical coagulation is used to remove colloidal particles by the use of coagulants which increase the particle size and they settle down.

Test: Types Of Unit Operations - Question 5

In which form of solute stabilization, hydrogen sulfide in effluent is oxidized into sulfate?

Detailed Solution for Test: Types Of Unit Operations - Question 5

Explanation: By the process of chlorination, effluent gets stabilized by the conversion of hydrogen sulfide into sulfate.

Test: Types Of Unit Operations - Question 6

 In which unit operation, gases are released or absorbed in the effluent?

Detailed Solution for Test: Types Of Unit Operations - Question 6

Explanation: In Gas transfer, gases are released or absorbed in the effluent by exposing the wastewater through aeration under normal, increased or reduced pressure.

Test: Types Of Unit Operations - Question 7

 In which process, excess lime is converted into bicarbonate?

Detailed Solution for Test: Types Of Unit Operations - Question 7

Explanation: By Re-carbonation of water softened by excess lime treatment, excess lime is converted into bicarbonate.

Test: Types Of Unit Operations - Question 8

Flocculation of iron from water by addition of lime is an example of which of the following process?

Detailed Solution for Test: Types Of Unit Operations - Question 8

Explanation: Chemical precipitation removes the dissolved substance from the effluent through ion transfer where precipitation of dissolved impurities takes place.

Test: Types Of Unit Operations - Question 9

 Which form of solute stabilization occurs when effluent passes through limestone?

Detailed Solution for Test: Types Of Unit Operations - Question 9

Explanation: When effluent passes through limestone, carbon dioxide in excess get converted into soluble bicarbonate.

Test: Types Of Unit Operations - Question 10

Solids are removed from the wastewater by which of the following unit operation?

Detailed Solution for Test: Types Of Unit Operations - Question 10

Explanation: During solids transfer, solids are removed from wastewater by straining, sedimentation, flotation and filtration.

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