Air Pollution and its Causes

This set of MCQs helps students to learn about air pollution which is a mixture of solid particles and gases in the air such as air emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities.

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Which gas is mainly produced due to incomplete burning of wood?

CO SO2 NO2 NO3

Which of the following is involved in production of carboxy haemoglobin?

CO SO2 NO2 NO3

Which of the following is a liquid form of aerosol?

Fume Dust Mist Smoke

X ray films are a source of which of the following gas?

SO2 CO2 NO2 SO3

Which of the following leads to a disease called broncho spasm?

SO2 SO3 SO4 CO2

Which of the following is a secondary air pollutant?

SPM PAN SO2 NO2

When environmental Lapse Rate (ELR) is less is than Adiabatic Lapse Rate (ALR), then which of the following occurs?

Sub adiabatic lapse rate Super adiabatic lapse rate Neutral lapse rate Adiabatic lapse rate

_______ occurs when atmospheric temperature increases with height.

Negative lapse rate Super adiabatic lapse rate Neutral lapse rate Positive lapse rate

When environmental Lapse Rate (ELR) is equal to the Adiabatic Lapse Rate (ALR), then which of the following occurs?

Sub adiabatic lapse rate Super adiabatic lapse rate Neutral lapse rate Adiabatic lapse rate

The wet adiabatic rate is greater than the dry adiabatic rate.

True False

When Environmental Lapse Rate (ELR) is greater than Adiabatic Lapse Rate (ALR), then which of the following occurs?

Sub adiabatic lapse rate Super adiabatic lapse rate Neutral lapse rate Adiabatic lapse rate

Which of the following is the absorption unit?

Cyclone collector Plate tower Gravitation settling chamber Dynamic precipitator

The maximum size of fly ash is ___________.

1μm

100μm

1000μm

10μm

The minimum size of the smoke particle is ___________.

0.2μm

1μm

0.8μm

0.5μm

The permissible concentration of PM 10 in the air is ___________.

60μg/m3

40μg/m3

50μg/m3

20μg/m3

Quiz/Test Summary
Title: Air Pollution and its Causes
Questions: 15
Contributed by:
Steve