Chemical Environmental Engineering

Which of the following is a secondary air pollutant ?

Byadmin March 11, 2019August 29, 2021

Which of the following is a secondary air pollutant ?

A. Photochemical smog
B. Sulphur dioxide
C. Nitrogen dioxide
D. Dust particles

Chemical Environmental Engineering

Noise pollution level in a chemical plant is expressed in __________________?

Noise pollution level in a chemical plant is expressed in __________________?

A. Roentgen
B. Decibel
C. Hertz
D. None of these

Read More Noise pollution level in a chemical plant is expressed in __________________?
Chemical Environmental Engineering

Maximum permissible turbidity in potable water is _____________ ppm?

Maximum permissible turbidity in potable water is _____________ ppm?

A. 1
B. 10
C. 250
D. 1000

Read More Maximum permissible turbidity in potable water is _____________ ppm?
Chemical Environmental Engineering

Infective bacteria in water is killed by the _____________ process?

Infective bacteria in water is killed by the _____________ process?

A. Sterilisation
B. Aeration
C. Disinfection
D. None of these

Read More Infective bacteria in water is killed by the _____________ process?
Chemical Environmental Engineering

Workers working in _______________ industry are most prone to white lung cancer?

Workers working in _______________ industry are most prone to white lung cancer?

A. Coal mining
B. Limestone mining
C. Textile
D. Asbestos

Read More Workers working in _______________ industry are most prone to white lung cancer?
Chemical Environmental Engineering

TLV of ammonia, nitrogen dioxide and phenol vapor in air is ______________ ppm ?

TLV of ammonia, nitrogen dioxide and phenol vapor in air is ______________ ppm ?

A. 5
B. 100
C. 1000
D. 2000

Read More TLV of ammonia, nitrogen dioxide and phenol vapor in air is ______________ ppm ?
Chemical Environmental Engineering

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_________________?

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_________________?

A. Poor visibility due to sky darkening
B. Irritation in eyes
C. Respiratory trouble
D. All A., B. and C.

Read More 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_________________?

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