ENVIRONMENTAL ENGINEERING IN CE QUIZ

Removal of __________ is accomplished by aeration of water.

Suspended solids

Dissolved gases

None of these

Dissolved solids

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ substances present in sewage are removed in grit chamber during sewage treatment.

Dissolved

Fatty

Inorganic

Organic

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Thermosphere

Troposphere

Mesosphere

Stratosphere

TRUE ANSWER : ?
YOUR ANSWER : ?

The resistance of water to the passage of light through it is a measure of the

Turbidity

Color

Dissolved gases

Hardness

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ plant emits large amount of SO₂ as an air pollutant.

Chloralkali

Nitric acid

Sulphuric acid

Iron & steel

TRUE ANSWER : ?
YOUR ANSWER : ?

Inhalation of silica dust by human being causes

Both B & C

Tuberculosis

Asphyxiation

Shortness of breath

TRUE ANSWER : ?
YOUR ANSWER : ?

Photochemical smog is formed from automobile exhaust

All of these

Appears only on sunny days

By reaction of hydrocarbon & nitric oxide in presence of sunlight

Is harmful for crops and trees also besides causing eye irritation & asthma

TRUE ANSWER : ?
YOUR ANSWER : ?

The main type of sludge gas evolved during sewage treatment in Imhoff tank is

CH₄

H₂

CO

CO₂

TRUE ANSWER : ?
YOUR ANSWER : ?

The Killer gas which caused Bhopal gas tragedy in 1984 was

Carbon monoxide

Phosgene

Methyl iso-cynate (MIC)

Sulphur dioxide

TRUE ANSWER : ?
YOUR ANSWER : ?

Aerosols present in atmospheric air may be

Combination of all A, B & C

Positively charged

Negatively charged

Neutral

TRUE ANSWER : ?
YOUR ANSWER : ?