ENVIRONMENTAL ENGINEERING IN CE QUIZ

Inorganic impurities causing water pollution is

Salts of metals

Fats

Carbohydrates

Protein

TRUE ANSWER : ?
YOUR ANSWER : ?

Infective bacteria in water is killed by the __________ process.

None of these

Aeration

Sterilisation

Disinfection

TRUE ANSWER : ?
YOUR ANSWER : ?

Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air.

Nitrogen dioxide

Hydrocarbons

Hydrogen sulphides

Hydrogen flouride

TRUE ANSWER : ?
YOUR ANSWER : ?

High noise level in a chemical plant can be controlled by the

Protection of operating personnel

Path control of noise

Suppression of noise at the source itself

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

In a sedimentation tank, the detention period for water ranges from __________ hours.

8 to 12

2 to 4

24 to 32

16 to 20

TRUE ANSWER : ?
YOUR ANSWER : ?

The lowest layer of atmosphere is known as the

Ionosphere

Stratosphere

None of these

Troposphere

TRUE ANSWER : ?
YOUR ANSWER : ?

Smog is

Nothing but black smoke

A combination of smoke and fog

A liquid particle resulting from vapor condensation

A solid particle e.g. flyash

TRUE ANSWER : ?
YOUR ANSWER : ?

In water treatment, alum[Al2(SO₄)3] is used for the process of

Coagulation

Filtration

Sedimentation

Disinfection

TRUE ANSWER : ?
YOUR ANSWER : ?

Exposure to chemicals having carcinogenic properties cause

Asthma

Cancer

Asphyxiation (suffocation)

Dermatitis (skin disorder)

TRUE ANSWER : ?
YOUR ANSWER : ?

Industrial workers working in leather tanning & manufacturing units are prone to suffer from

Respirtory ailments (e.g. bronchitis)

Blurred vision

Silicosis

Skin diseases (e.g. dermatities)

TRUE ANSWER : ?
YOUR ANSWER : ?

↑