The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated.

Environmental Engineering in CE
The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated.

Remains constant

May increase or decrease ; depends on the chemical characteristics of polluted water

Decreases

Increases

Remains constant

May increase or decrease ; depends on the chemical characteristics of polluted water

Decreases

Increases

ANSWER DOWNLOAD EXAMIANS APP

Environmental Engineering in CE
In large thermal power stations very fine particulates present in flue gas are removed by

Bag filter

Electrostatic precipitators

Wet scrubber

Dust catcher

Bag filter

Electrostatic precipitators

Wet scrubber

Dust catcher

ANSWER DOWNLOAD EXAMIANS APP

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 clarifiers

In vacuum filter

In sedimentation tanks equipped with mechanical scrapper

By chemical coagulation

In clarifiers

In vacuum filter

In sedimentation tanks equipped with mechanical scrapper

ANSWER DOWNLOAD EXAMIANS APP

Environmental Engineering in CE
From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm.

50

500

5

1

50

500

5

1

ANSWER DOWNLOAD EXAMIANS APP

Environmental Engineering in CE
Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes

Poor visibility due to sky darkening

Respiratory trouble

All of these

Irritation in eyes

Poor visibility due to sky darkening

Respiratory trouble

All of these

Irritation in eyes

ANSWER DOWNLOAD EXAMIANS APP

Environmental Engineering in CE
TLV of mercury in potable (drinking) water is about __________ ppm.

5

0.001

1

0.1

5

0.001

1

0.1

ANSWER DOWNLOAD EXAMIANS APP

Environmental Engineering in CE

Environmental Engineering in CE The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated.

Environmental Engineering in CE In large thermal power stations very fine particulates present in flue gas are removed by

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 From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm.

Environmental Engineering in CE Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes

Environmental Engineering in CE TLV of mercury in potable (drinking) water is about __________ ppm.

Environmental Engineering in CE
The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated.

Environmental Engineering in CE
In large thermal power stations very fine particulates present in flue gas are removed by

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
From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm.

Environmental Engineering in CE
Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes

Environmental Engineering in CE
TLV of mercury in potable (drinking) water is about __________ ppm.