Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal

Environmental Engineering in CE
Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal

By chemical coagulation

In vacuum filter

In clarifiers

In sedimentation tanks equipped with mechanical scrapper

By chemical coagulation

In vacuum filter

In clarifiers

In sedimentation tanks equipped with mechanical scrapper

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Environmental Engineering in CE
Which of the following is not a practical method of low level radioactive waste disposal?

Discharging to atmosphere through tall stacks after dilution

Filling in steel crates and shooting it off out of earth

Disposing off in rivers & oceans

Dilution with inert material

Discharging to atmosphere through tall stacks after dilution

Filling in steel crates and shooting it off out of earth

Disposing off in rivers & oceans

Dilution with inert material

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Environmental Engineering in CE
Removal of __________ is accomplished by aeration of water.

Dissolved gases

None of these

Suspended solids

Dissolved solids

Dissolved gases

None of these

Suspended solids

Dissolved solids

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Environmental Engineering in CE
Green house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect?

SO₃

H₂

N₂

CO₂

SO₃

H₂

N₂

CO₂

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Environmental Engineering in CE
A 'body' which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the

Green house

Atmospheric effect

Global warming

Ionosphere

Green house

Atmospheric effect

Global warming

Ionosphere

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Environmental Engineering in CE
Presence of high concentration of ozone and smog in atmospheric air causes the

Fading of dye on textiles

Cracking of rubber products

Embrittlement & decrease of folding resistance of paper

Damage of electrical insulator on high tension power line

Fading of dye on textiles

Cracking of rubber products

Embrittlement & decrease of folding resistance of paper

Damage of electrical insulator on high tension power line

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Environmental Engineering in CE

Environmental Engineering in CE Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal

Environmental Engineering in CE Which of the following is not a practical method of low level radioactive waste disposal?

Environmental Engineering in CE Removal of __________ is accomplished by aeration of water.

Environmental Engineering in CE Green house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect?

Environmental Engineering in CE A 'body' which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the

Environmental Engineering in CE Presence of high concentration of ozone and smog in atmospheric air causes the

Environmental Engineering in CE
Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal

Environmental Engineering in CE
Which of the following is not a practical method of low level radioactive waste disposal?

Environmental Engineering in CE
Removal of __________ is accomplished by aeration of water.

Environmental Engineering in CE
Green house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect?

Environmental Engineering in CE
A 'body' which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the

Environmental Engineering in CE
Presence of high concentration of ozone and smog in atmospheric air causes the