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Environmental Engineering

Environmental Engineering
The characteristics of fresh and septic sewage respectively are

Acidic and alkaline
Both alkaline
Both acidic
Alkaline and acidic

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Environmental Engineering
The type of valve which allows water to flow in one direction but prevents its flow in the reverse direction is

Air relief valve
Reflux valve
Sluice valve
Pressure relief valve

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Environmental Engineering
An egg shaped section of sewer

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

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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
None of these
Same
Larger

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Environmental Engineering
For the same solid content, if the quantity of sludge with moisture content of 98% is X, then the quantity of sludge with moisture content of 96% will be

X/2
X/4
2X
X

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Environmental Engineering
The process of lagooning is primarily a means of

Reducing the excessive flow in sewers
Increasing flow of sewage through imhoff tanks
Increasing the capacity of storage reservoirs
Disposing of sludge

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MORE MCQ ON Environmental Engineering

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