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Environmental Engineering in CE

Environmental Engineering in CE
Arsenic pollutant is not generated in____industries.

Any of these
Glass & ceramic
Tanneries
Beverages

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Environmental Engineering in CE
Maximum permissible limit of mercury in human blood is __________ micrograms/100 c.c.

82
19
7
1

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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?

Ammonia
Acetylene
Carbon monoxide
Hydrogen

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Environmental Engineering in CE
Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid ilow control. It is caused due to

Neither A nor B
Both A & B
Shear forces
Reynold stresses

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

Dissolved solids
Floating solids
Suspended inorganic matter
Dissolved gases

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Environmental Engineering in CE
Sulphur dioxide present in the industrial chimney exhaust gases causes

Reduction in plant's productivity owing to acid rain
Respiratory & lung disease
Corrosion of building materials
All of these

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