Explore topic-wise MCQs in Waste Water Engineering.

This section includes 24 Mcqs, each offering curated multiple-choice questions to sharpen your Waste Water Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

Calculate the flow of backwash pump required for the activated carbon filter for the following details.Flow: 2500 m3/h.Rise Velocity: 15m/hBackwash pump velocity: 24 m/h

A. 2500 m3/h
B. 3500 m3/h
C. 4000 m3/h
D. 4500 m3/h
Answer» D. 4500 m3/h
Discussion
2.

Calculate the backwash water volume for the activated carbon filter for the following details.Net Flow: 3000 m3/h.Rise Velocity: 15m/h

A. 580 m3
B. 800 m3
C. 680 m3
D. 900 m3
Answer» C. 680 m3
Discussion
3.

Calculate the backwash pump required for the activated carbon filter for the following details.Flow: 1000 m3/h.Rise Velocity: 15m/h

A. 1000 m3/hr
B. 1608 m3/hr
C. 1288 m3/hr
D. 1200 m3/hr
Answer» C. 1288 m3/hr
Discussion
4.

Calculate the area of the activated carbon filter for the following details.Flow: 2000 m3/h.Rise Velocity: 15m/h

A. 118 m2
B. 135 m2
C. 122 m2
D. 136 m2
Answer» C. 122 m2
Discussion
5.

What is the minimum temperature required for carbonization?

A. 200˚C
B. 400˚C
C. 600˚C
D. 800˚C
Answer» D. 800˚C
Discussion
6.

What is the range of bonding energies of carbon?

A. 2-3 KJ per mol
B. 3-4 KJ per mol
C. 4-8 KJ per mol
D. 5-10 KJ per mol
Answer» E.
Discussion
7.

_______ stores natural gas.

A. Sponge
B. Activated carbon
C. Cotton
D. Zinc
Answer» C. Cotton
Discussion
8.

________STORES_NATURAL_GAS.?$

A. Sponge
B. Activated carbon
C. Cotton
D. Zinc
Answer» C. Cotton
Discussion
9.

What is the minimum temperature required for carbonization?$

A. 200ÀöC
B. 400ÀöC
C. 600ÀöC
D. 800ÀöC
Answer» D. 800‚àö√Ñ‚àö‚àÇC
Discussion
10.

What_is_the_range_of_bonding_energies_of_carbon?$

A. 2-3 KJ per mol
B. 3-4 KJ per mol
C. 4-8 KJ per mol
D. 5-10 KJ per mol
Answer» E.
Discussion
11.

Calculate the backwash water volume for the activated carbon filter for the following details.

A.
B.
Answer» C.
Discussion
12.

Which of these are not removed by an activated carbon filter?

A. TSS
B. Turbidity
C. Colour
D. Odour
Answer» B. Turbidity
Discussion
13.

What is the quality of Turbidity obtained in the effluent by an activated carbon filter?

A. <1 ppm
B. 10 ppm
C. Below detection level
D. <0.5 ppm
Answer» E.
Discussion
14.

What is the quality of Organic content obtained in the effluent by an activated carbon filter?

A. <1 ppm
B. 10 ppm
C. Below detection level
D. 1.5 ppm
Answer» D. 1.5 ppm
Discussion
15.

Calculate the backwash pump required for the activated carbon filter for the following details.

A.
B.
Answer» C.
Discussion
16.

Calculate_the_area_of_the_activated_carbon_filter_for_the_following_details.

A.
B.
Answer» C.
Discussion
17.

For which of the following activated carbon is not used?

A. Spill cleanup
B. Air purification
C. Increase in oxygen quantity
D. Groundwater remediation
Answer» D. Groundwater remediation
Discussion
18.

What is the average surface area of one gram of carbon?

A. 1000 m<sup>2</sup>
B. 2000 m<sup>2</sup>
C. 3000 m<sup>2</sup>
D. 4000 m<sup>2</sup>
Answer» D. 4000 m<sup>2</sup>
Discussion
19.

On which principle does the particulate filters work?

A. Particle’s size
B. Absorb contaminant
C. Reacts with contaminant
D. Adsorb contaminant
Answer» B. Absorb contaminant
Discussion
20.

How many types of water filters are present?

A. 2
B. 3
C. 4
D. 5
Answer» B. 3
Discussion
21.

Which of the following is not removed by activated carbon?

A. Odour
B. Chlorine
C. Microbes
D. Micro-pollutants
Answer» D. Micro-pollutants
Discussion
22.

___________ has high degree of porosity.

A. Alum
B. Carbon
C. Aluminium
D. Zinc
Answer» C. Aluminium
Discussion
23.

The filter once installed need not to be replaced in activated carbon filtration.

A. True
B. False
Answer» C.
Discussion
24.

Activated carbon removes microbial contaminants effectively.

A. True
B. False
Answer» C.
Discussion