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Waste Water Engineering

Waste Water Engineering
Which one of the following part of human body withstands minimum radiation?

Kidneys
Thyroid
Eyes
Ovaries/testis

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Waste Water Engineering
In a trickling filter

Biological action is used
Both A and B
Neither A nor B
Filtration process is used

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Waste Water Engineering
In areas where rainy season is limited to a few months, the type of sewerage system recommended is

None of these
Separate system
Partially separate system
Combined system

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Waste Water Engineering
The reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is

1 in 100 upward
1 in 500 upward
1 in 100 downward
1 in 503 upward

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Waste Water Engineering
Aerobic activity is maximum

At sewer pipes
None of these
In freshly produced sewage
In sewer treatment plants

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Waste Water Engineering
Depletion of ozone layer in the outer atmosphere may cause

Skin cancer
Bronchitis
Lung cancer
Heart disorder

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