Chemical Environmental Engineering

In large thermal power stations very fine particulates present in flue gas are removed by___________________?

Byadmin March 11, 2019August 29, 2021

In large thermal power stations very fine particulates present in flue gas are removed by___________________?

A. Wet scrubber
B. Bag filter
C. Electrostatic precipitators
D. Dust catcher

Chemical Environmental Engineering

The average thickness of ozone layer in stratosphere is about _______________ dobson unit (DU)?

The average thickness of ozone layer in stratosphere is about _______________ dobson unit (DU)?

A. 20
B. 230
C. 750
D. 1500

Read More The average thickness of ozone layer in stratosphere is about _______________ dobson unit (DU)?
Chemical Environmental Engineering

Ionisation potential employed in the industrial electrostatic precipitator is of the order of_______________?

Ionisation potential employed in the industrial electrostatic precipitator is of the order of_______________?

A. 30 to 70 kV DC
B. 30 to 70 kV AC
C. 230 V AC
D. 230 V DC

Read More Ionisation potential employed in the industrial electrostatic precipitator is of the order of_______________?
Chemical Environmental Engineering

Which of the following is the most severe air pollutant ?

Which of the following is the most severe air pollutant ?

A. Hydrocarbons
B. NOx
C. SO2
D. CO

Read More Which of the following is the most severe air pollutant ?
Chemical Environmental Engineering

Radioactive solid nuclear wastes are disposed off by _________________?

Radioactive solid nuclear wastes are disposed off by _________________?

A. High temperature incineration
B. Pathological incineration
C. Pyrolysis
D. Underground burial in concrete containers

Read More Radioactive solid nuclear wastes are disposed off by _________________?
Chemical Environmental Engineering

Removal of ______________ results from the disinfection of water?

Removal of ______________ results from the disinfection of water?

A. Turbidity
B. Odour
C. Hardness
D. Bacteria

Read More Removal of ______________ results from the disinfection of water?
Chemical Environmental Engineering

Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan_________________?

Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan_________________?

A. With greater number of blades
B. Of increased diameter
C. Both A. & B.
D. Neither A. nor B.

Read More Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan_________________?

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