Methyl isocyanate (MIC) gas (TLV

Byadmin March 11, 2019August 29, 2021

Methyl isocyanate (MIC) gas (TLV <1 ppm), which caused Bhopal gas tragedy in 1984 falls under the category of ______________ toxic gas?

A. Moderately
B. Highly
C. Extremely
D. Very extremely

Chemical Environmental Engineering

Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about ______________ decibels?

Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about ______________ decibels?

A. 90
B. 120
C. 150
D. 180

Read More Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about ______________ decibels?
Chemical Environmental Engineering

Pollution by particulate matter emission in the atmosphere does not take place during metal____________________?

Pollution by particulate matter emission in the atmosphere does not take place during metal____________________?

A. Grinding
B. Machining
C. Cutting
D. Polishing

Read More Pollution by particulate matter emission in the atmosphere does not take place during metal____________________?
Chemical Environmental Engineering

BOD of raw municipal sewage may be in the range of about _____________ mg/litre?

BOD of raw municipal sewage may be in the range of about _____________ mg/litre?

A. 1-2
B. 5-10
C. 150-300
D. 2000-3000

Read More BOD of raw municipal sewage may be in the range of about _____________ mg/litre?
Chemical Environmental Engineering

There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth’s surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about _____________ °C/km?

There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth’s surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about _____________ °C/km?

A. 0.05
B. 1
C. 6.5
D. 15

Read More There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth’s surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about _____________ °C/km?
Chemical Environmental Engineering

Peroxyacetyl nitrate (PAN), a pollutant is found in the_________________?

Peroxyacetyl nitrate (PAN), a pollutant is found in the_________________?

A. Automobile exhaust
B. Flue gas of coal based power plant
C. Exhaust of nitric acid plant
D. Exhaust of sulphuric acid plant

Read More Peroxyacetyl nitrate (PAN), a pollutant is found in the_________________?
Chemical Environmental Engineering

Fresh sewage is ______________ in nature?

Fresh sewage is ______________ in nature?

A. Acidic
B. Neutral
C. Alkaline
D. Highly acidic

Read More Fresh sewage is ______________ in nature?

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