Chemical Environmental Engineering

Fine grit present in sewage is removed in the _____________ during sewage treatment?

Byadmin March 11, 2019August 29, 2021

Fine grit present in sewage is removed in the _____________ during sewage treatment?

A. Grit chamber
B. Detritus tank
C. Trickling filter
D. Skimming tank

Chemical Environmental Engineering

The concentration of water vapour in troposphere, which depends upon the altitude & temperature, varies in the range of zero to ______________ percent?

The concentration of water vapour in troposphere, which depends upon the altitude & temperature, varies in the range of zero to ______________ percent?

A. 1
B. 4
C. 8
D. 12

Read More The concentration of water vapour in troposphere, which depends upon the altitude & temperature, varies in the range of zero to ______________ percent?
Chemical Environmental Engineering

In troposphere (the weather domain), the temperature ‘t’ at height ‘h’ above the spa level in metres is given by (where, temperature at sea level is 15°C and t is in °C ?

In troposphere (the weather domain), the temperature ‘t’ at height ‘h’ above the spa level in metres is given by (where, temperature at sea level is 15°C and t is in °C ?

A. t = 15 – 0.0065h
B. t = 15 + 0.0065h
C. t = 0.0035h -15
D. t = 15 – 0.0035h

Read More In troposphere (the weather domain), the temperature ‘t’ at height ‘h’ above the spa level in metres is given by (where, temperature at sea level is 15°C and t is in °C ?
Chemical Environmental Engineering

Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes_________________?

Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes_________________?

A. Paralysis of muscles & loss of appetite
B. Nervous depression
C. Gastritis and diarrhea
D. All A., B. and C.

Read More Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes_________________?
Chemical Environmental Engineering

Fluorosis is caused due to the presence of excessive amount of ______________ in drinking water?

Fluorosis is caused due to the presence of excessive amount of ______________ in drinking water?

A. Mercury
B. Lead
C. Fluoride
D. Arsenic

Read More Fluorosis is caused due to the presence of excessive amount of ______________ in drinking water?
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

White smoke coming out of the chimney of a furnace indicates the use of_________________?

White smoke coming out of the chimney of a furnace indicates the use of_________________?

A. Low excess air
B. Very high excess air
C. Gaseous fuel in the furnace
D. Liquid fuel in the furnace

Read More White smoke coming out of the chimney of a furnace indicates the use of_________________?

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