Waste Water Engineering MCQ Questions & Answers | Civil Engineering

A. Water test

B. Ball test

C. Mirror test

D. All of these

A. The larger the sewer in size, more will be velocity

B. The smaller the sewer in size, less will be velocity

C. The larger the sewer in size, no deposition will take place

D. The larger the sewer in size, deposition will take place

A. The mixture of water and waste products, is called sewage

B. The treated sewage effluents, are generally used for irrigating the crops

C. The process of collecting, treating and disposing off the sewage, is called sewerage

D. The old convergence system was definitely better than water carried sewerage system

A. In freshly produced sewage

B. At sewer pipes

C. In sewer treatment plants

D. None of these

A. Oil and grease are removed from skimming tanks

B. Floating materials are removed by screening

C. Girt and sand are removed by girt chambers

D. All the above

A. $${{\text{p}}_{\text{t}}} = \frac{{3{{\text{H}}^3}{\text{p}}}}{{2\pi {{\text{Z}}^5}}}$$

B. $${{\text{p}}_{\text{t}}} = \frac{{2{{\text{H}}^3}{\text{p}}}}{{3\pi {{\text{Z}}^5}}}$$

C. $${{\text{p}}_{\text{t}}} = \frac{{{\text{3}}{{\text{H}}^3}{\text{p}}}}{{2{{\text{Z}}^5}}}$$

D. $${{\text{p}}_{\text{t}}} = \frac{{{\text{2}}\pi {{\text{H}}^3}{\text{p}}}}{{3\pi {{\text{Z}}^5}}}$$

E. None of these

A. Are water seals which prevent the entry of foul gases

B. Are used to trap the rats entering sewers

C. Dissolve the foul gases

D. Create symphonic action to increase the quick disposal of sewerage

A. Nitrites

B. Nitrates

C. Free ammonia

D. Aluminoid nitrogen

A. Glazed bricks sewers

B. Cast iron sewers

C. Cement concrete sewers

D. Stone ware sewers

A. It is acidic

B. It is alkaline

C. It is neutral

D. None of these