Waste Water Engineering Mock Test 3

10%

Question 1 of 10

1. Usually while designing what is the range of depth of the aerated grit chamber assumed?

12 m

2-5 m

0.5-2 m

8-10 m

Question 1 of 10

Question 2 of 10

2. What is the headloss for fine screens?

0.8-1.4m

3-3.5m

2-2.5m

<0.8 m

Question 2 of 10

Question 3 of 10

3. What is the maximum allowable head loss for a manual coarse screen?

100mm

150mm

300 mm

200 mm

Question 3 of 10

Question 4 of 10

4. Which of these process is involved in the settling process in solid thickening facilities?

Hindered settling

Flocculent settling

Compression settling

Accelerated gravity settling

Question 4 of 10

Question 5 of 10

5. Which type of treatment does clarification fall in?

Preliminary treatment

Secondary treatment

Tertiary treatment

Primary treatment

Question 5 of 10

Question 6 of 10

6. W_s = W_sp + W_ss
What does Wsp stand for in the above equation?

Polluted solids

Raw primary solids

Total dry solids

Suspended solids

Question 6 of 10

Question 7 of 10

7. Usually while designing what is the range of length of the aerated grit chamber assumed?

25 m

50 m

7.5-20

4-6 m

Question 7 of 10

Question 8 of 10

8. Which of these remove coarse materials?

Commutors

Fine screen

Coarse screen

Grit chamber

Question 8 of 10

Question 9 of 10

9. What is the term used for reuse of sewage sludge?

Sludge

Compost

Biosolids

Solids

Question 9 of 10

Question 10 of 10

10. What is the % of dry solids assumed for a primary sludge from a settling tank at the outlet?

12%

5-7%

9-11%

Question 10 of 10