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Environmental Engineering in CE

Environmental Engineering in CE
A standard test for determination of hardness in water is termed as __________ test.

Presumptive
Electometric
EDTA
Total count

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Environmental Engineering in CE
Solid content in most of the domestic sewage is about __________ percent.

5
10
0.001
0.1

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Environmental Engineering in CE
The permissible color for domestic water supply is __________ ppm.

100
1
1000
20

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Environmental Engineering in CE
Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called

Grit
Smoke
Dust
Powder

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Environmental Engineering in CE
The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is

Cavitation
Pipe vibrations
Fluctuation in liquid flow
Boundary layer separation

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Environmental Engineering in CE
Septic tanks are used for the __________ of the deposited solids.

Separation
Aerobic decomposition
Anaerobic decomposition
None of these

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