ENVIRONMENTAL ENGINEERING IN CE QUIZ

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

Color

Hardness

Turbidity

Dissolved gases

TRUE ANSWER : ?
YOUR ANSWER : ?

The per capital consumption of a locality is affected by(i) Climatic conditions(ii) Quality of water(iii) Distribution pressure

All (i), (ii) and (iii)

Both (i) and (iii)

Only (i)

Both (i) and (ii)

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following industries discharge mercury as a pollutant?

Phosphoric acid plant

Tanneries

Chloro-alkali industry

Beverage plant

TRUE ANSWER : ?
YOUR ANSWER : ?

Insufficient washing of sand grains in a rapid sand filter causes

Shrinkage of filtering media

Mud balls

Expansion of filtering media

Air binding

TRUE ANSWER : ?
YOUR ANSWER : ?

Removal of __________ results from the disinfection of water.

Bacteria

Turbidity

Odour

Hardness

TRUE ANSWER : ?
YOUR ANSWER : ?

Ionisation potential employed in the industrial electrostatic precipitator is of the order of

30 to 70 kV DC

230 V AC

30 to 70 kV AC

230 V DC

TRUE ANSWER : ?
YOUR ANSWER : ?

The commonest form of iron & manganese found in ground water as pollutant is in the form of their

Carbonates

Sulphides

Bi-carbonates

Chlorides

TRUE ANSWER : ?
YOUR ANSWER : ?

Brown spots in fabrics will be caused by washing with water containing large amount of .

Iodine

Iron

Zinc

Bromine

TRUE ANSWER : ?
YOUR ANSWER : ?

A shallow pond in which the sewage is retained and biologically treated is called

Imhoff tank

Skimming tank

Oxidation

Lagoon

TRUE ANSWER : ?
YOUR ANSWER : ?

Hydrogen ion concentration in distilled water is

10⁻⁷

10⁷

7 x 10⁻⁷

7 x 10⁷

TRUE ANSWER : ?
YOUR ANSWER : ?

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