Advanced Wastewater Treatment Methods MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Advanced Wastewater Treatment Methods, 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 Advanced Wastewater Treatment Methods 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 Advanced Wastewater Treatment Methods mcq questions that explore various aspects of Advanced Wastewater Treatment Methods problems. Each MCQ is crafted to challenge your understanding of Advanced Wastewater Treatment Methods 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 Advanced Wastewater Treatment Methods 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 Advanced Wastewater Treatment Methods. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

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Advanced Wastewater Treatment Methods MCQs | Page 36 of 48

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Q351.
________ is used in detergents to soften water.

a.

Hydraulic acid

b.

Sulphuric acid

c.

Citric acid

d.

Chlorine

Discuss
Answer: (c).Citric acid
Q352.
Which is the commonly used chelator?

a.

Rhodamine B

b.

EDTA

c.

Chlorine

d.

Bromine

Discuss
Answer: (b).EDTA
Q353.
Calculate the amount of softener resin required for the following information.

Magnesium: 80 ppm as CaCO₃
Capacity: 47 Kg/m³
Correction factor: 0.9
Flow rate: 135 m³/hr
Operation hours: 20 hrs

a.

4.5 m³

b.

3.5 m³

c.

5.1 m³

d.

2.5 m³

Discuss
Answer: (c).5.1 m³
Q354.
Calculate the theoretical softener resin bed depth for the following data:

Magnesium Load: 130 ppm as CaCO₃
Capacity: 47 Kg/m³
Correction factor: 0.9
Flow rate: 135 m³/hr
Operation hours: 20 hrs
Linear velocity: 16.6 m³/h/ m³
Space velocity: 20 m³/h/ m³

a.

1.5 m

b.

1.2 m³

c.

2.6 m

d.

2.5 m

Discuss
Answer: (b).1.2 m³
Q355.
Calculate the area of the softener vessel required for the following information.

Magnesium Load: 180 ppm as CaCO₃
Capacity: 47 Kg/m³
Correction factor: 0.9
Flow rate: 135 m³/hr
Operation hours: 20 hrs
Linear velocity: 16.6 m³/h/ m³
Space velocity: 20 m³/h/ m³

a.

8.5 m²

b.

11.6 m²

c.

9.7 m²

d.

8.5 m³

Discuss
Answer: (b).11.6 m²
Q356.
Calculate the diameter of the softener vessel required for the below given data.

Magnesium Load: 500 ppm as CaCO₃
Capacity: 57 Kg/m³
Correction factor: 0.9
Flow rate: 135 m³/hr
Operation hours: 20 hrs
Linear velocity: 16.6 m³/h/ m³
Space velocity: 20 m³/h/ m³

a.

5.2 m

b.

5.0 m

c.

7.6 m

d.

9.8 m

Discuss
Answer: (a).5.2 m
Q357.
Calculate the fast rinse flow of the regenerant liquid for a softener with the below given data.

Magnesium Load: 10 ppm as CaCO₃
Capacity: 47 Kg/m³
Correction factor: 0.9
Flow rate: 135 m³/hr
Operation hours: 20 hrs

a.

4.5 m³ /hr

b.

7.2 m³/hr

c.

1.7 m³ /hr

d.

7.5 m³/hr

Discuss
Answer: (b).7.2 m³/hr
Q358.
Calculate the regenerant flow required for the softener system with the given below data.

Calcium Load: 85 ppm as CaCO₃
Capacity: 37 Kg/m³
Correction factor: 0.9
Flow rate: 135 m³/hr
Operation hours: 20 hrs

a.

25 m³/hr

b.

28 m³/hr

c.

12 m³/hr

d.

21 m³/hr

Discuss
Answer: (d).21 m³/hr
Q359.
Calculate the rinse volume of the regenerant liquid for the softener system with the given below data.

Calcium Load: 60 ppm as CaCO₃
Capacity: 37 Kg/m³
Correction factor: 0.9
Flow rate: 35 m³/hr
Operation hours: 10 hrs

a.

1.5 m³/hr

b.

3.5 m³/hr

c.

4.9 m³/hr

d.

2.5 m³/hr

Discuss
Answer: (b).3.5 m³/hr
Q360.
Calculate the fast rinse period of the regenerant liquid for a softener system with the given below data.

Calcium Load: 40 ppm as CaCO₃
Capacity: 37 Kg/m³
Correction factor: 0.9
Flow rate: 235 m³/hr
Operation hours: 10 hrs

a.

25 mins

b.

30 mins

c.

20 mins

d.

15 mins

Discuss
Answer: (a).25 mins
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