Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?

Environmental Engineering in CE
Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?

CFC (chloro fluoro carbons)

NOx

CO

SO₂

CFC (chloro fluoro carbons)

NOx

CO

SO₂

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Environmental Engineering in CE
Polyvinyl chloride containers are not suitable for storing

Woolen clothes

Metallic powder

None of these

Foodstuffs

Woolen clothes

Metallic powder

None of these

Foodstuffs

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Environmental Engineering in CE
Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels.

105

160

135

185

105

160

135

185

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Environmental Engineering in CE
Which of the following is an adsorbant for removal of nitrogen oxides from gas/air?

Active carbon

Pulverised limestone

Bog iron (iron oxide)

Silica gel

Active carbon

Pulverised limestone

Bog iron (iron oxide)

Silica gel

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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

Ionosphere

Atmospheric effect

Global warming

Green house

Ionosphere

Atmospheric effect

Global warming

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Environmental Engineering in CE
Operating principle of cyclone separator is based on the action of __________ dust particles.

Gravitational force on

Centrifugal force on

Electrostatic force on

Diffusion of

Gravitational force on

Centrifugal force on

Electrostatic force on

Diffusion of

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Environmental Engineering in CE

Environmental Engineering in CE Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?

Environmental Engineering in CE Polyvinyl chloride containers are not suitable for storing

Environmental Engineering in CE Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels.

Environmental Engineering in CE Which of the following is an adsorbant for removal of nitrogen oxides from gas/air?

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 Operating principle of cyclone separator is based on the action of __________ dust particles.

Environmental Engineering in CE
Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?

Environmental Engineering in CE
Polyvinyl chloride containers are not suitable for storing

Environmental Engineering in CE
Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels.

Environmental Engineering in CE
Which of the following is an adsorbant for removal of nitrogen oxides from gas/air?

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
Operating principle of cyclone separator is based on the action of __________ dust particles.