Activated Sludge Process MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Activated Sludge Process, a fundamental topic in the field of Waste Water Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Activated Sludge Process MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Activated Sludge Process mcq questions that explore various aspects of Activated Sludge Process problems. Each MCQ is crafted to challenge your understanding of Activated Sludge Process principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Waste Water Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Activated Sludge Process MCQs are your pathway to success in mastering this essential Waste Water Engineering topic.

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Activated Sludge Process MCQs | Page 2 of 8

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Q11.
Calculate the volume of the aeration tank required for the following data:

Flow: 800 m³/d
BOD: 1000 mg/L
F/M ratio: 0.15(extended aeration)
MLSS : 3500 mg/L

a.

High sludge volume index

b.

Low sludge volume index

c.

Low oxygen demand

d.

Floc formation is less

Discuss
Answer: (a).High sludge volume index
Q12.
For the removal of BOD through Activated Sludge Process (ASP) what would be the Solid retention time considered?

a.

18 hours

b.

1-2 days

c.

10 hrs

d.

3 days

Discuss
Answer: (b).1-2 days
Q13.
For the conversion of particulate organics through Activated Sludge Process (ASP) what would be the Solid retention time considered?

a.

18 hours

b.

1-2 days

c.

2-4 days

d.

5 days

Discuss
Answer: (c).2-4 days
Q14.
For the development of flocculent biomass for treating domestic water through Activated Sludge Process (ASP) what would be the Solid retention time considered?

a.

18 hours

b.

4 days

c.

10 hrs

d.

1-3 days

Discuss
Answer: (d).1-3 days
Q15.
For the development of flocculent biomass for treating industrial water through Activated Sludge Process (ASP) what would be the Solid retention time considered?

a.

18 hours

b.

3-5 days

c.

20 hrs

d.

1-3 days

Discuss
Answer: (d).1-3 days
Q16.
For the removal of nitrogen completely through Activated Sludge Process (ASP) what would be the Solid retention time considered?

a.

3-18 days

b.

1-2 days

c.

12 hours

d.

18 hours

Discuss
Answer: (b).1-2 days
Q17.
For the removal of phosphorous through Activated Sludge Process (ASP) what would be the Solid retention time considered?

a.

18 hours

b.

1-2 days

c.

10 hrs

d.

2-4 days

Discuss
Answer: (d).2-4 days
Q18.
What is the typical value of the F/M ratio considered for an ASP process?

a.

0.04 g/g.d

b.

0.1 g/g.d

c.

0.4 g/g.d

d.

0.01 g/g.d

Discuss
Answer: (a).0.04 g/g.d
Q19.
What is the typical value of the F/M ratio considered for an extended ASP process?

a.

0.04 g/g.d

b.

0.1 g/g.d

c.

0.4 g/g.d

d.

0.01 g/g.d

Discuss
Answer: (b).0.1 g/g.d
Q20.
While designing an aeration tank for the ASP what is the volumetric organic loading rate considered?

a.

0.3-3

b.

0.03-0.2

c.

3-5

d.

5-7

Discuss
Answer: (a).0.3-3
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