Waste Water Engineering MCQ Questions & Answers

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Each section contains 100 MCQs on Waste Water Engineering .

The ratio of maximum sewage flow to average sewage flow for trunk mains having diameters more than 1.25 m, is

A) 1.5 B) 2.0 C) 3.0 D) 4.0

Discuss

Answer & Solution

Answer: Option A

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

Lead caulked joints are used for laying

A) Stone ware pipes B) Earthenware pipes C) C.I. pipes D) G.I. pipes

Discuss

Answer & Solution

Answer: Option B

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

Large diameter sewers subjected to external pressure alone, are reinforced

A) Near the inner surface of the pipe B) Near the outer surface of the pipe C) Both A and B D) With elliptical cage

Discuss

Answer & Solution

Answer: Option D

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

The presence of free ammonia in sewage, is detected by

A) Boiling B) Adding potassium permanganate C) Adding sulphuric acid D) Phenol-di-sulphuric acid

Discuss

Answer & Solution

Answer: Option A

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

The rational formula for peak drainage discharge, was evolved by

A) Fruhling B) Lloyd David C) Kuichling D) All of these

Discuss

Answer & Solution

Answer: Option D

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

In sewers designed with self cleansing velocity,

A) The bottom is silted B) The bottom is scoured C) Both silting and scouring occur at the bottom D) Neither silting nor scouring occurs at the bottom

Discuss

Answer & Solution

Answer: Option D

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

The sewer that unloads the sewage at the point of treatment is called

A) Main sewer B) Outfall sewer C) Branch sewer D) House sewer

Discuss

Answer & Solution

Answer: Option B

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

In primary sedimentation, the 0.2 mm inorganic solids get separated if specific gravity is

A) 2.25 B) 2.50 C) 2.55 D) 2.65

Discuss

Answer & Solution

Answer: Option D

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

Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for

A) Unexpected large scale infiltration of stream water B) Unexpected increase in the population C) Under estimates of maximum and average flows D) All of the above

Discuss

Answer & Solution

Answer: Option D

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

100

A cylindrical ejector having its height 2 m fills after every 10 minutes with a peak sewage discharge of 0.0157 cumec. The diameter of the ejector chamber, is

A) 2.30 m B) 2.40 m C) 2.45 m D) 2.50 m

Discuss

Answer & Solution

Answer: Option C

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

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Waste Water Engineering MCQ Questions & Answers | Civil Engineering