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Environmental Engineering in CE

Environmental Engineering in CE
Which of the following acts as a natural source of air pollution?

Forest fire
Deforestation
Volcanic eruption
None of these

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Environmental Engineering in CE
Siderosis is a disease caused by the inhalation of __________ dust.

None of these
Silica
Coal
Iron

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Environmental Engineering in CE
Which of the following is the most lethal water pollutant?

Phenol and cynide
Chlorine
Alkalis
Suspended solids

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Environmental Engineering in CE
During which of the following operating conditions of an automobile, carbon monoxide content in the exhaust gas is maximum?

Acceleration
Cruising
Idle running
Deaccelaration

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Environmental Engineering in CE
Presence of __________ bacteria in water causes disease like typhoid.

Aerobic
Anaerobic
Pathogenic
Non-pathogenic

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Environmental Engineering in CE
Turbidity of water is an indication of the presence of

Dissolved gases
Suspended inorganic matter
Dissolved solids
Floating solids

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