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Environmental Engineering

Environmental Engineering
The characteristics of fresh and septic sewage respectively are

Alkaline and acidic
Both acidic
Acidic and alkaline
Both alkaline

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Environmental Engineering
Turbidity is measured on

Standard platinum scale
Standard silica scale
Standard cobalt scale
Platinum cobalt scale

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Environmental Engineering
The type of valve which is provided to control the flow of water in the distribution system at street corners and where the pipe lines intersect is

Check valve
Safety valve
Scour valve
Sluice valve

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Environmental Engineering
The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about

1.0 to 5.0 ppm
0.05 to 0.5 ppm
0.5 to 1.0 ppm
0.01 to 0.05 ppm

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Environmental Engineering
The dissolved oxygen level in natural unpolluted waters at normal temperature is found to be of the order of

10 mg/liter
100 mg/liter
1000 mg/liter
1 mg/liter

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Environmental Engineering
Dissolved oxygen in streams is

Same throughout the day
Maximum at noon
Maximum at midnight
Minimum at noon

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MORE MCQ ON Environmental Engineering

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