Chemical Environmental Engineering

____________ substances present in sewage are removed in grit chamber during sewage treatment?

Byadmin March 11, 2019August 29, 2021

____________ substances present in sewage are removed in grit chamber during sewage treatment?

A. Organic
B. Fatty
C. Inorganic
D. Dissolved

Chemical Environmental Engineering

The Killer gas which caused Bhopal gas tragedy in 1984 was________________?

The Killer gas which caused Bhopal gas tragedy in 1984 was________________?

A. Phosgene
B. Methyl isocyanate (MIC)
C. Carbon monoxide
D. Sulphur dioxide

Read More The Killer gas which caused Bhopal gas tragedy in 1984 was________________?
Chemical Environmental Engineering

The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about ____________ decibels?

The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about ____________ decibels?

A. 60
B. 90
C. 105
D. 120

Read More The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about ____________ decibels?
Chemical Environmental Engineering

Polyvinyl chloride containers are not suitable for storing_________________?

Polyvinyl chloride containers are not suitable for storing_________________?

A. Foodstuffs
B. Woolen clothes
C. Metallic powder
D. None of these

Read More Polyvinyl chloride containers are not suitable for storing_________________?
Chemical Environmental Engineering

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________________?

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________________?

A. Global warming
B. Green house
C. Atmospheric effect
D. Ionosphere

Read More 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________________?
Chemical Environmental Engineering

Main pollutants released from petroleum refineries is__________________?

Main pollutants released from petroleum refineries is__________________?

A. CO, SO2 & H2S
B. CO2, NO & SO3
C. CO2, H2S & NO2
D. SO3, NO2 & CO2

Read More Main pollutants released from petroleum refineries is__________________?
Chemical Environmental Engineering

The resistance of water to the passage of light through it is a measure of the___________________?

The resistance of water to the passage of light through it is a measure of the___________________?

A. Turbidity
B. Color
C. Hardness
D. Dissolved gases

Read More The resistance of water to the passage of light through it is a measure of the___________________?