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Test: Chemical Characteristics of Waste Water - Civil Engineering (CE) MCQ


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10 Questions MCQ Test Environmental Engineering - Test: Chemical Characteristics of Waste Water

Test: Chemical Characteristics of Waste Water for Civil Engineering (CE) 2024 is part of Environmental Engineering preparation. The Test: Chemical Characteristics of Waste Water questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Chemical Characteristics of Waste Water MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Chemical Characteristics of Waste Water below.
Solutions of Test: Chemical Characteristics of Waste Water questions in English are available as part of our Environmental Engineering for Civil Engineering (CE) & Test: Chemical Characteristics of Waste Water 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: Chemical Characteristics of Waste Water | 10 questions in 30 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: Chemical Characteristics of Waste Water - Question 1

What is the minimum quantity of dissolved oxygen that should be present in the treated sewage?

Detailed Solution for Test: Chemical Characteristics of Waste Water - Question 1

At least, 4ppm of dissolved oxygen should be present in treating sewage otherwise, fishes will die due to lack of dissolved oxygen.

Test: Chemical Characteristics of Waste Water - Question 2

The temperature of sewage increases. What will be the effect on the dissolved oxygen in sewage?

Detailed Solution for Test: Chemical Characteristics of Waste Water - Question 2

The temperature and dissolved oxygen are inversely proportional to each other.

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Test: Chemical Characteristics of Waste Water - Question 3

The presence of free ammonia in sewage represents _____

Detailed Solution for Test: Chemical Characteristics of Waste Water - Question 3

The presence of free ammonia in sewage represents recent pollution. Which can be removed from wastewater by the nitrification process.

Test: Chemical Characteristics of Waste Water - Question 4

The presence of which of the following in sewage indicates nitrogen content before decomposition of sewage?

Detailed Solution for Test: Chemical Characteristics of Waste Water - Question 4

The presence of Albuminoid nitrogen in water indicates the decomposition of sewage has not taken place.It nitrogen is also called as organic nitrogen.

Test: Chemical Characteristics of Waste Water - Question 5

The type of solids which floats in sewage is ___

Detailed Solution for Test: Chemical Characteristics of Waste Water - Question 5

The suspended solids float in sewage. 1000kg of sewage contain 0.112 kg of suspended solids.

Test: Chemical Characteristics of Waste Water - Question 6

Which chemical is used for the titration of waste water for finding its chloride content?

Detailed Solution for Test: Chemical Characteristics of Waste Water - Question 6

Potassium chromate is used for the titration of waste water with silver nitrate solution for finding the chloride content.

Test: Chemical Characteristics of Waste Water - Question 7

______ is used to find the D.O content of sewage.

Detailed Solution for Test: Chemical Characteristics of Waste Water - Question 7

Wrinkler method is used to find the D.O content of sewage where the D.O content is proportional to the titration of iodine with S2O32- solution.

Test: Chemical Characteristics of Waste Water - Question 8

The presence of which of the following indicates old pollution?

Detailed Solution for Test: Chemical Characteristics of Waste Water - Question 8

The presence of nitrates indicates the old pollution. It also means that the nitrogen is fully oxidized in sewage.

Test: Chemical Characteristics of Waste Water - Question 9

Imhoff cone is used to measure the ____

Detailed Solution for Test: Chemical Characteristics of Waste Water - Question 9

Imhoff cone is used to measure the settleable solids where wastewater is allowed to stand for a specific time, solids get settled down and the readings are taken through the graduations on the cone.

Test: Chemical Characteristics of Waste Water - Question 10

The permissible dose of chloride in domestic sewage is _____

Detailed Solution for Test: Chemical Characteristics of Waste Water - Question 10

Domestic sewage includes waste from kitchen, laundry, toilet, bathroom, etc., which contain higher amount of chloride content, so the permissible dose of 120ppm is kept for domestic sewage.

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