Civil Engineering - Waste Water Engineering

1. 

In areas where light rains are uniformly distributed throughout the year, the type of sewerage system to be adopted is

A. separate system
B. combined system
C. partially combined system
D. none of these.

Answer: Option B

Explanation:

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2. 

For detecting the nitrates in sewage, the colour may be developed by adding

A. Pottassium permanganate
B. Sulphuric acid and napthamine
C. Phenol-di-sulphuric acid and pottassium hydroxide
D. None of these.

Answer: Option C

Explanation:

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3. 

The value of Chezy's constant

is used in

A. Chezy's formula
B. Bazin's formula
C. Kutter's formula
D. Manning's formula.

Answer: Option B

Explanation:

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4. 

The formula which accepts the value of rugosity coefficient n = 0.012 to be used in Manning's formula, is given by

A. Bazin
B. Crimp and Bruge
C. William-Hazen
D. Kutter.

Answer: Option B

Explanation:

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5. 

For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of

A. 100 cm
B. 120 cm
C. 140 cm
D. 160 cm
E. 180 cm.

Answer: Option D

Explanation:

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