Waste Water Engineering MCQ Questions & Answers

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Each section contains 100 MCQs on Waste Water Engineering .

If a paper moistened with lead acetate for five minutes when placed in manhole turns black. The sewer certainly contains

A) Hydrogen sulphide B) Carbon dioxide C) Methane D) Oxygen

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains

A) Hydrogen sulphide B) Carbon dioxide C) Methane D) Oxygen

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The pressure exerted by

A) The sewage when running full from inside, is called internal pressure B) The internal pressure if any, causes tensile stress in the pipe material C) Pressure sewers are designed to be safe in tension D) All the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The factor responsible for purification of sewage in river is

A) Hydrology B) Dissolved oxygen in water C) Temperature D) All the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Inter-distance between ventilation columns in a sewer line is kept

A) 25 to 50 m B) 50 m to 100 m C) 100 m to 150 m D) 150 m to 300 m

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Pick up the incorrect statement from the following:

A) Manholes are provided in sewer pipes at suitable intervals B) Catch basins are generally provided in sewers for carrying drainage discharge C) Inlets are generally provided in all sewers D) None of these

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Pick up the correct statement from the following:

A) pH value indicates acidity and alkalinity of sewage B) In acidic sewage, the pH value is less than 7 C) In alkaline sewage, the pH value is more than 7 D) All the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The most efficient cross section of sewers in a separate sewerage system is

A) Parabolic B) Circular C) Rectangular D) New egged

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The most efficient cross-section of sewers in a combined sewerage system is

A) Parabolic B) Circular C) Rectangular D) New egged

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The minimum diameter of a sewer is kept

A) 10 cm B) 15 cm C) 20 cm D) 25 cm

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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Waste Water Engineering MCQ Questions & Answers | Civil Engineering