The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the

Environmental Engineering in CE
The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the

Ionosphere

None of these

Troposphere

Stratosphere

Ionosphere

None of these

Troposphere

Stratosphere

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Environmental Engineering in CE
Tolerable limit of nitrogen oxides in air is __________ ppm.

25

1

5

0.1

25

1

5

0.1

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

Dust catcher

Electrostatic precipitators

Wet scrubber

Bag filter

Dust catcher

Electrostatic precipitators

Wet scrubber

Bag filter

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Environmental Engineering in CE
Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the

Bag filter

Gravity settling chamber

Electrostatic precipitator

Cyclone separator

Bag filter

Gravity settling chamber

Electrostatic precipitator

Cyclone separator

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Environmental Engineering in CE
Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid ilow control. It is caused due to

Neither A nor B

Shear forces

Reynold stresses

Both A & B

Neither A nor B

Shear forces

Reynold stresses

Both A & B

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Environmental Engineering in CE
On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because

Of clotting of blood

It forms CO₂ by combining with oxygen present in the blood

Of jamming of respiratory tract

It forms carboxyhaemoglobin by combining with haemoglobin of blood, thereby making it incapable of absorbing oxygen

Of clotting of blood

It forms CO₂ by combining with oxygen present in the blood

Of jamming of respiratory tract

It forms carboxyhaemoglobin by combining with haemoglobin of blood, thereby making it incapable of absorbing oxygen

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Environmental Engineering in CE

Environmental Engineering in CE The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the

Environmental Engineering in CE Tolerable limit of nitrogen oxides in air is __________ ppm.

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

Environmental Engineering in CE Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the

Environmental Engineering in CE Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid ilow control. It is caused due to

Environmental Engineering in CE On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because

Environmental Engineering in CE
The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the

Environmental Engineering in CE
Tolerable limit of nitrogen oxides in air is __________ ppm.

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

Environmental Engineering in CE
Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the

Environmental Engineering in CE
Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid ilow control. It is caused due to

Environmental Engineering in CE
On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because