Which of the following is a solid waste pollutant?

• Bottle
• Glass jar
• Plastic container
• All of these

Problem of solid waste disposal can be reduced through

• Recycling
• More timber
• Lesser pollution
• Population control

Which is not a part of 5R�s of consumption?

• Reuse
• Retain
• Refuse
• Recycle

Which of the following is a solid pollutant

• Carbon
• Carbondioxide
• Sulphur dioxide
• Carbon monoxide

According to EPA of USA, the following is not one of the six major pollutants?

• Ozone
• Carbon monoxide
• Nitrogen oxides
• Carbon di-oxide

The Pollution Standard Index (PSI) scale has span from

• 0-200
• 0-300
• 0-400
• 0-500

Which of the following is not an organic gas?

• Hydrocarbons
• Aldehydes
• Ketones
• Ammonia

Which of the following is/are inorganic gas (es)?

• Carbon monoxide
• Hydrogen sulphide
• Chlorine
• All of the above

The major contributor of Carbon monoxide is

• Motor vehicle
• Industrial processes
• Stationary fuel combustion
• None of the above

Fugitive emissions consist of

• Street dust
• Dust from construction activities
• Dust from farm cultivation
• All of the above

Ozone is found in

• Mesosphere
• Ionosphere
• Stratosphere
• Exosphere

Ozone is formed in the upper atmosphere by a photochemical reaction with

• Ultra violet solar radiation
• Infra red radiation
• Visible light
• All of the above

The principal source of volatile organics (Hydrocarbons) is

• Transportation
• Industrial processes
• Stationary fuel combustion
• Volcanoes

The function of automobile catalytic converter is to control emissions of

• carbon dioxide and hydrogen
• carbon monoxide and hydrogen
• carbon monoxide and carbon dioxide
• carbon monoxide and nitrogen dioxide

The list of industrial sources of air pollution and their emissions are given. Match the following.
A. Ammonia 1. Carbon monoxide
B. Plating 2. Particulates
C. Fertilizers 3. Metal fumes

• A-1, B-2, C-3
• A-3, B-2, C-1
• A-1, B-3, C-2
• A-3, B-1, C-2

The threshold concentration of sulphur dioxide in any industrial activity should not be permitted beyond

• 2ppm
• 3ppm
• 4ppm
• 5ppm

The threshold limit of benzene is

• 15ppm
• 20ppm
• 25ppm
• 30ppm

Which of the following is used as antiknock compound in gasoline?

• tetramethyl lead
• tetraethyl lead
• trimethyl lead
• triethyl lead

Which of the following is a fermentation product of molasses?

• Methanol
• Formaldeyde
• Ammonia
• Acetone

Which gas out of following is found highest by volume in Air?

• Nitrogen
• Oxygen
• Ozone
• Methane