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Environmental Engineering in CE

Environmental Engineering in CE
__________ is the process of killing organism in water.

Sterilisation
Coagulation
Sedimentation
Disinfection

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Environmental Engineering in CE
Which is the most efficient dust removal equipment for removal of sub-micronic dust particles from blast furnace gas?

Gravity settling chamber
Electrostatic precipitator
Hydrocyclone
Packed scrubber

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Environmental Engineering in CE
Workers working in __________ industry are most prone to white lung cancer.

Asbestos
Coal mining
Textile
Limestone mining

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Environmental Engineering in CE
Tri-sodium phosphate is used in boiler water treatment to reduce

Turbidity
Dissolved oxygen
Suspended silica
Caustic embrittlement

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Environmental Engineering in CE
In troposphere (the weather domain), the temperature 't' at height 'h' above the spa level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)

t = 15 + 0.0065h
t = 15 - 0.0035h
t = 15 - 0.0065h
t = 0.0035h -15

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Environmental Engineering in CE
Fresh sewage is __________ in nature.

Highly acidic
Alkaline
Acidic
Neutral

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