ENVIRONMENTAL ENGINEERING IN CE QUIZ

If carbon monoxide content in atmospheric air exceeds __________ ppm, death is bound to occur.

50

3000 (i.e. 0.3%)

500

1000

TRUE ANSWER : ?
YOUR ANSWER : ?

Infective bacteria in water is killed by the __________ process.

Disinfection

None of these

Aeration

Sterilisation

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the most major constituents of air pollutants?

Oxides of sulphur

Oxides of nitrogen

Carbon monoxide

Hydrogen sulphide

TRUE ANSWER : ?
YOUR ANSWER : ?

Color test of water is done with an instrument called

Tintometer

Turbidimeter

Colorimeter

Electro-chemical cell

TRUE ANSWER : ?
YOUR ANSWER : ?

Radioactive solid nuclear wastes are disposed off by

Pyrolysis

High temperature incineration

Pathological incineration

Underground burial in concrete containers

TRUE ANSWER : ?
YOUR ANSWER : ?

Removal of __________ results from the disinfection of water.

Turbidity

Hardness

Bacteria

Odour

TRUE ANSWER : ?
YOUR ANSWER : ?

During which of the following operating conditions of an automobile, carbon monoxide content in the exhaust gas is maximum?

Deaccelaration

Cruising

Idle running

Acceleration

TRUE ANSWER : ?
YOUR ANSWER : ?

Reinglemann chart is used for the measurement of the

Exhaust gas density

Combustibles present in automobile exhaust

Smoke density from a chimey

Flue gas temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

A masonry structure built below ground level, where biochemical reaction takes place due to anaerobic bacteria is called

Septic tank

Lagoon

Cesspool

Skimming mill

TRUE ANSWER : ?
YOUR ANSWER : ?

The pH value of potable water should be between

4 to 5

6.5 to 8

13 to 14

1 to 1.5

TRUE ANSWER : ?
YOUR ANSWER : ?

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