Air Pollution Control Equipment and Technologies

Description: This quiz is designed to assess your knowledge of Air Pollution Control Equipment and Technologies.
Number of Questions: 15
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Tags: air pollution control equipment technologies
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What is the primary function of a cyclone separator in air pollution control?

  1. To remove particulate matter from a gas stream

  2. To reduce the concentration of sulfur dioxide in a gas stream

  3. To control the emission of volatile organic compounds (VOCs)

  4. To neutralize acidic gases in a gas stream


Correct Option: A
Explanation:

A cyclone separator is a mechanical device that uses centrifugal force to separate particulate matter from a gas stream.

Which of the following is NOT a type of electrostatic precipitator (ESP)?

  1. Wet ESP

  2. Dry ESP

  3. Fabric filter

  4. Two-stage ESP


Correct Option: C
Explanation:

A fabric filter is a type of baghouse, not an ESP.

What is the main purpose of a catalytic converter in a vehicle's exhaust system?

  1. To reduce the emission of carbon monoxide (CO)

  2. To control the emission of nitrogen oxides (NOx)

  3. To remove particulate matter from the exhaust gas

  4. To convert unburned hydrocarbons (HC) into carbon dioxide (CO2) and water (H2O)


Correct Option: D
Explanation:

A catalytic converter uses a catalyst to promote the chemical conversion of unburned HC and CO into CO2 and H2O.

Which of the following is NOT a type of scrubber used for air pollution control?

  1. Wet scrubber

  2. Dry scrubber

  3. Electrostatic precipitator

  4. Packed bed scrubber


Correct Option: C
Explanation:

An electrostatic precipitator is a type of particulate matter control device, not a scrubber.

What is the primary function of an activated carbon adsorber in air pollution control?

  1. To remove particulate matter from a gas stream

  2. To reduce the concentration of sulfur dioxide in a gas stream

  3. To control the emission of volatile organic compounds (VOCs)

  4. To neutralize acidic gases in a gas stream


Correct Option: C
Explanation:

Activated carbon adsorbers are used to remove VOCs from a gas stream by adsorption.

Which of the following is NOT a type of baghouse used for air pollution control?

  1. Fabric filter

  2. Electrostatic precipitator

  3. Reverse air baghouse

  4. Pulse-jet baghouse


Correct Option: B
Explanation:

An electrostatic precipitator is a type of particulate matter control device, not a baghouse.

What is the primary function of a biofilter in air pollution control?

  1. To remove particulate matter from a gas stream

  2. To reduce the concentration of sulfur dioxide in a gas stream

  3. To control the emission of volatile organic compounds (VOCs)

  4. To remove odorous compounds from a gas stream


Correct Option: D
Explanation:

Biofilters use microorganisms to remove odorous compounds from a gas stream.

Which of the following is NOT a type of air pollution control device used in the cement industry?

  1. Electrostatic precipitator

  2. Fabric filter

  3. Wet scrubber

  4. Selective catalytic reduction (SCR)


Correct Option: D
Explanation:

SCR is used to control NOx emissions, which are not a major concern in the cement industry.

What is the primary function of a condenser in air pollution control?

  1. To remove particulate matter from a gas stream

  2. To reduce the concentration of sulfur dioxide in a gas stream

  3. To control the emission of volatile organic compounds (VOCs)

  4. To remove water vapor from a gas stream


Correct Option: D
Explanation:

Condensers are used to remove water vapor from a gas stream by cooling the gas.

Which of the following is NOT a type of air pollution control device used in the power industry?

  1. Electrostatic precipitator

  2. Fabric filter

  3. Wet scrubber

  4. Fluidized bed combustor


Correct Option: D
Explanation:

Fluidized bed combustors are used to reduce the emission of sulfur dioxide and nitrogen oxides, but they are not considered air pollution control devices.

What is the primary function of a flare in air pollution control?

  1. To remove particulate matter from a gas stream

  2. To reduce the concentration of sulfur dioxide in a gas stream

  3. To control the emission of volatile organic compounds (VOCs)

  4. To burn off excess gases from a process


Correct Option: D
Explanation:

Flares are used to burn off excess gases from a process, such as those generated during the production of chemicals or petroleum products.

Which of the following is NOT a type of air pollution control device used in the steel industry?

  1. Electrostatic precipitator

  2. Fabric filter

  3. Wet scrubber

  4. Basic oxygen furnace (BOF)


Correct Option: D
Explanation:

BOFs are used to produce steel, not to control air pollution.

What is the primary function of a thermal oxidizer in air pollution control?

  1. To remove particulate matter from a gas stream

  2. To reduce the concentration of sulfur dioxide in a gas stream

  3. To control the emission of volatile organic compounds (VOCs)

  4. To destroy hazardous air pollutants (HAPs)


Correct Option: D
Explanation:

Thermal oxidizers are used to destroy HAPs by burning them at high temperatures.

Which of the following is NOT a type of air pollution control device used in the petroleum industry?

  1. Electrostatic precipitator

  2. Fabric filter

  3. Wet scrubber

  4. Hydrocracker


Correct Option: D
Explanation:

Hydrocrackers are used to convert heavy petroleum fractions into lighter products, not to control air pollution.

What is the primary function of a selective catalytic reduction (SCR) system in air pollution control?

  1. To remove particulate matter from a gas stream

  2. To reduce the concentration of sulfur dioxide in a gas stream

  3. To control the emission of nitrogen oxides (NOx)

  4. To remove odorous compounds from a gas stream


Correct Option: C
Explanation:

SCR systems use a catalyst to reduce NOx emissions by converting them into nitrogen and water.

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