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Environmental Engineering in CE

Environmental Engineering in CE
Nitrogen oxides (NOx) is not produced in the __________ industry.

Detergent
Any of these
Nitrogenous fertiliser
Nitric acid making

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Environmental Engineering in CE
Scale formation in boiler is controlled by

Keeping the pH value of feed water just below 7
Eliminating H₂S in feed water
Preheating of feed water
Reduction in hardness, silica & alumina in feed water

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Environmental Engineering in CE
A standard test for determination of hardness in water is termed as __________ test.

Presumptive
Total count
Electometric
EDTA

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Environmental Engineering in CE
Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the

Rain
Vegetation
Forestation
Green house effect

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Environmental Engineering in CE
Atmospheric pollution caused by the exhaust gas of supresonic transport air-crafts is mostly in the atmospheric region called

Mesosphere
Thermosphere
Stratosphere
Troposphere

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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

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

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