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Test: High Rate Trickling Filter And Secondary Clarifier - Civil Engineering (CE) MCQ


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10 Questions MCQ Test Environmental Engineering - Test: High Rate Trickling Filter And Secondary Clarifier

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

 The maximum removal of suspended and dissolved impurities from the sewage is

Detailed Solution for Test: High Rate Trickling Filter And Secondary Clarifier - Question 1

Explanation: The maximum and minimum removal of suspended and dissolved impurities from the sewage is 92% and 65% respectively.

Test: High Rate Trickling Filter And Secondary Clarifier - Question 2

The color of the secondary sludge produced from the high rate trickling filter is

Detailed Solution for Test: High Rate Trickling Filter And Secondary Clarifier - Question 2

Explanation: The color of the secondary sludge produced from the high rate trickling filter is brown and the secondary sludge obtained is partially oxidized.

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Test: High Rate Trickling Filter And Secondary Clarifier - Question 3

_______ is the ratio of volume of recirculated sewage to the raw sewage.

Detailed Solution for Test: High Rate Trickling Filter And Secondary Clarifier - Question 3

Explanation: Recirculation ratio is the ratio of volume of recirculated sewage to the raw sewage. It is denoted by R/I where, ‘R’ is the recirculated sewage and I is the volume of raw sewage.

Test: High Rate Trickling Filter And Secondary Clarifier - Question 4

 The range of organic loading in kg/hectare metre/ day in a high rate trickling filter is

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Explanation: The range of organic loading in high rate trickling filter lies between 6000 to 18000 kg of 5 days BOD per hectare metre of filter media per day.

Test: High Rate Trickling Filter And Secondary Clarifier - Question 5

The size of filter media in a high rate trickling filter is

Detailed Solution for Test: High Rate Trickling Filter And Secondary Clarifier - Question 5

Explanation: The size of filter media in a high rate trickling filter is 25-60mm and it can be a rock, slag or any synthetic material.

Test: High Rate Trickling Filter And Secondary Clarifier - Question 6

The surface loading rate of a secondary clarifier is ______ litres/m2/day

Detailed Solution for Test: High Rate Trickling Filter And Secondary Clarifier - Question 6

Explanation: The range of surface loading rate of a secondary clarifier lies between 40,000 litres/m2/day to 70,000 litres/m2/day.

Test: High Rate Trickling Filter And Secondary Clarifier - Question 7

The detention period of a secondary clarifier is

Detailed Solution for Test: High Rate Trickling Filter And Secondary Clarifier - Question 7

Explanation: The detention period of a secondary clarifier is between 1.5 hours to 2 hours.

Test: High Rate Trickling Filter And Secondary Clarifier - Question 8

Which of the following is the cause of rising sludge?

Detailed Solution for Test: High Rate Trickling Filter And Secondary Clarifier - Question 8

Explanation: When nitrogen is formed in the sludge, the rise of the sludge mass takes place. This phenomena is called as rising sludge.

Test: High Rate Trickling Filter And Secondary Clarifier - Question 9

The minimum weir loading rate of primary clarifier is ____m3/m/day.

Detailed Solution for Test: High Rate Trickling Filter And Secondary Clarifier - Question 9

Explanation: The minimum and maximum weir loading rate of primary clarifier is 125000 and 500000 m3/m/day respectively.

Test: High Rate Trickling Filter And Secondary Clarifier - Question 10

Hopper bottom vertical flow type tank is _____ in shape.

Detailed Solution for Test: High Rate Trickling Filter And Secondary Clarifier - Question 10

Explanation: Hopper bottom vertical flow type tank is circular in shape and it consists of conical hoppers.

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