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Environmental Engineering

Environmental Engineering
Settling velocity increases with

Specific gravity of solid particles
Size of particles
Depth of tank
Temperature of liquid

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

Drop manhole
Manhole
Catch basin
Inlet

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

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

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Environmental Engineering
A pipe conveying sewage from plumbing system of a single building to common sewer or point of immediate disposal is called

Lateral sewer
Main sewer
House sewer
Sub-main sewer

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Environmental Engineering
Disinfection of water results in

Removal of turbidity
Removal of hardness
Complete sterilisation
Killing of disease bacteria

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Environmental Engineering
The maximum discharge of a tube well is about

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

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MORE MCQ ON Environmental Engineering

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