Waste Water Engineering Mock Test 8

10%

Question 1 of 10

1. Which type of membrane exhibit low flux?

Anisotropic

Asymmetric

Tubular

Isotropic

Question 1 of 10

Question 2 of 10

2. What is the upflow velocity considered for a UASB while treating domestic waste water?

1-2 m/h

0.8-1 m/h

3-4 m/h

2-3 m/h

Question 2 of 10

Question 3 of 10

3. Which among the following corrodes due to oxidation?

Only cathode

Anode and cathode

Cathode

Anode

Question 3 of 10

Question 4 of 10

4. What is the flux assumed while designing the reverse osmosis system to treat surface water?

28-32 LMH

3-10 LMH

32-40 LMH

14-28 LMH

Question 4 of 10

Question 5 of 10

5. The molecular weight greater than _____ is likely rejected by an RO system.

200

100

150

Question 5 of 10

Question 6 of 10

6. What is the percentage of swelling between the chlorine and the hydroxide forms?

40%

30%

10%

20%

Question 6 of 10

Question 7 of 10

7. What is the average pressure at which the reverse osmosis operates for sea water desalination?

5000-8000 psi

1000-2000 psi

800-1000 psi

2000-3000 psi

Question 7 of 10

Question 8 of 10

8. While designing the demineralisation plant what is considered as the strong basic anion load?

EMA+Silica

Silica+CO₂+ Alkalinity+EMA

Alkaline hardness

Alkaline hardness + EMA+CO₂

Question 8 of 10

Question 9 of 10

9. What is the flux considered while designing a reverse osmosis system for treating bore well water?

20-30 LMH

30-40 LMH

40-50 LMH

12-18 LMH

Question 9 of 10

Question 10 of 10

10. What is the retention time considered for a UASB while designing at > 26 degree Celsius?

10-14 h

7-9

3-5 h

6-8

Question 10 of 10