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Environmental Engineering

Environmental Engineering
The means of access for inspection and cleaning of sewer line is known as

Manhole
Drop manhole
Inlet
Catch basin

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Environmental Engineering
The maximum discharge of a tube well is about

500 liters/sec
5 liters/sec
50 liters/sec
1000 liters/sec

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Environmental Engineering
As compared to higher pH values, the contact period required for efficient chlorination at lower pH values is

Smaller
Larger
None of these
Same

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Environmental Engineering
An egg shaped section of sewer

Is more stable than circular section
Is economical than circular section
Is easy to construct
Provides self cleansing velocity at low discharges

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Environmental Engineering
The most common cause of acidity in water is

Carbon dioxide
Oxygen
Hydrogen
Nitrogen

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Environmental Engineering
On standard silica scale, the turbidity in drinking water should be limited to

10 ppm
50 ppm
20 ppm
30 ppm

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MORE MCQ ON Environmental Engineering

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