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Air-pollution Questions Set 6:

Quiz Mode

What percentage of air pollutants are in gaseous form?

75%

80%

99.9%

90%

Solution:

Which atmospheric layer does the planetary boundary layer belong to?

Exosphere

Stratosphere

Troposphere

Ionosphere

Solution:

Which gas is released as anthropogenic activities?

Carbon Dioxide

Nitrogen Dioxide

Carbon Monoxide

Nitric Oxide

Solution:

The method employed for burning waste completely to ashes is known as

Carbonation

Incineration

Oxidation

Liquefaction

Solution:

Among the common air pollutants found in urban environments (NO, SO₂, Soot, and O₃), which one is the secondary air pollutant?

Soot

O₂

SO₂

Solution:

The two primary air pollutants are:

Nitrogen oxide and peroxyacetylnitrate

Ozone and peroxyacetylnitrate

Sulfur oxide and ozone

Sulfur oxide and nitrogen oxide

Solution:

What does PAH stand for in organic chemistry?

Polynuclear Aromatic Hydrocarbons

Polyethylene Acetic Hydride

Polycyclic Acetic Hydrocarbons

Polynuclear Aromatic Hydrides

Solution:

Which one of the following pairs is not correctly matched?

Coriolis effect: The effect of the Earth's rotation on wind direction and velocity

PAN: Found during photochemical smog

Cyclone: Employed for particulate matter removal

Wind rose: Used to forecast pollutant dispersion in ambient air

Solution:

The following is a well-known formula for estimating the plume rise:

Δh = (V_sd/u)*(1.5 + 0.0096Q_h/V_sd)

where the letters have their usual meanings.

Using the given formula, calculate the estimated plume rise with a stack gas having a heat emission rate of 2000 kJ/s, wind speed of 4 m/s, stack gas speed of 8 m/s, and a stack diameter of 1 m at the top.

7.8 m

8.7 m

3.9 m

5.6 m

Solution:

An electrostatic precipitator (ESP) with 5600 m² of collector plate area is 96% efficient in treating 185 m³/s of flue gas from a 200 MW thermal power plant. It was found that in order to achieve 97% efficiency, the collector plate area should be 6100 m². In order to increase the efficiency to 99%, the ESP collector plate area (expressed in m²) would be____________. Round off to 2 decimal places.

Air-pollution Questions Set 6:

What percentage of air pollutants are in gaseous form?

Solution:

Which atmospheric layer does the planetary boundary layer belong to?

Solution:

Which gas is released as anthropogenic activities?

Solution:

The method employed for burning waste completely to ashes is known as

Solution:

Among the common air pollutants found in urban environments (NO, SO₂, Soot, and O₃), which one is the secondary air pollutant?

Solution:

The two primary air pollutants are:

Solution:

What does PAH stand for in organic chemistry?

Solution:

Which one of the following pairs is not correctly matched?

Solution:

Solution:

Solution:

Related Question Sets:

Related Topics:

Air-pollution Questions Set 6:

What percentage of air pollutants are in gaseous form?

Solution:

Which atmospheric layer does the planetary boundary layer belong to?

Solution:

Which gas is released as anthropogenic activities?

Solution:

The method employed for burning waste completely to ashes is known as

Solution:

Among the common air pollutants found in urban environments (NO, SO2, Soot, and O3), which one is the secondary air pollutant?

Solution:

The two primary air pollutants are:

Solution:

What does PAH stand for in organic chemistry?

Solution:

Which one of the following pairs is not correctly matched?

Solution:

Solution:

Solution:

Related Question Sets:

Related Topics:

Among the common air pollutants found in urban environments (NO, SO₂, Soot, and O₃), which one is the secondary air pollutant?