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Environmental Engineering in CE

Environmental Engineering in CE
Persons working in cement plants and limestone quarries are more prone to disease like

Flourosis (bone disease)
Silicosis
Cancer
Asthma

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Environmental Engineering in CE
Which of the following gases is having the widest explosion limit (about 2 to 81% gas in gas-air mixture), rendering it the property of the most explosive gas?

Carbon monoxide
Acetylene
Hydrogen
Ammonia

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Environmental Engineering in CE
Ozone level is generally found to be depleted in India in the month of

December
July
April
February

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Environmental Engineering in CE
Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by

Both A & B
Natural aeration of water stream
Neither A nor B
Photosynthetic action of algae

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Environmental Engineering in CE
Exposure to small amount of __________ results in high blood pressure & heart disease in human beings.

Hydrogen sulphide
Cadmium
Asbestos
Mercury

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Environmental Engineering in CE
5-200 μm size particles are called

Dust
Colloids or aerosols
Powder
Smoke

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MORE MCQ ON Environmental Engineering in CE

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