Unit Operations for Wastewater Treatment MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Unit Operations for Wastewater Treatment, 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 Unit Operations for Wastewater Treatment 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 Unit Operations for Wastewater Treatment mcq questions that explore various aspects of Unit Operations for Wastewater Treatment problems. Each MCQ is crafted to challenge your understanding of Unit Operations for Wastewater Treatment 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 Unit Operations for Wastewater Treatment MCQs are your pathway to success in mastering this essential Waste Water Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Unit Operations for Wastewater Treatment. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Unit Operations for Wastewater Treatment knowledge to the test? Let's get started with our carefully curated MCQs!

Unit Operations for Wastewater Treatment MCQs | Page 2 of 10

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Q11.
While designing a mechanical screen, the clear space between the bars would be in what range?

a.

15-75mm

b.

25-50mm

c.

20-40mm

d.

>75mm

Discuss
Answer: (a).15-75mm
Q12.
What is the maximum approach velocity to be considered for a mechanical screen while designing it?

a.

0.3-0.5m/s

b.

0.6-1m/s

c.

1-1.5m/s

d.

2 m/s

Discuss
Answer: (b).0.6-1m/s
Q13.
What is the size of the openings for a fine screen?

a.

0.1 mm

b.

0.8-1mm

c.

0.2-0.6mm

d.

1-3mm

Discuss
Answer: (c).0.2-0.6mm
Q14.
What is the percentage of TSS removed by a rotary drum fine screen?

a.

50%

b.

60%

c.

65-75%

d.

25-45%

Discuss
Answer: (d).25-45%
Q15.
Which type of mixers are used to mix coagulants like alum, ferric ammonium sulphate and coagulant aids such as polyelectrolyte and lime?

a.

Static mixers

b.

Mechanical mixers

c.

Mechanical aerators

d.

Paddle mixers

Discuss
Answer: (d).Paddle mixers
Q16.
Which type of mixer is used when the flow needs to be changed often?

a.

Paddle mixer

b.

Static mixer

c.

Mechanical mixer

d.

Mechanical aerator

Discuss
Answer: (b).Static mixer
Q17.
In order to prevent clogging what should be provided prior to tube settlers?

a.

Clarifiers

b.

Coarse screen

c.

Fine screen

d.

Grit chamber

Discuss
Answer: (c).Fine screen
Q18.
Which of these is not a type of grit chamber?

a.

Horizontal flow

b.

Vortex

c.

Vertical flow

d.

Aerated

Discuss
Answer: (c).Vertical flow
Q19.
What is the detention time considered while designing a Grit chamber?

a.

20-40 sec

b.

10-20 sec

c.

90-120 sec

d.

45-90 sec

Discuss
Answer: (d).45-90 sec
Q20.
In which of the following systems no flow is added or allowed to leave during the design detention time?

a.

Arbitrary flow reactor

b.

Fluidized bed reactor

c.

Mixed batch reactor

d.

Packed bed reactor

Discuss
Answer: (c).Mixed batch reactor
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