ENVIRONMENTAL ENGINEERING IN CE QUIZ

In large thermal power stations very fine particulates present in flue gas are removed by

Dust catcher

Bag filter

Electrostatic precipitators

Wet scrubber

TRUE ANSWER : ?
YOUR ANSWER : ?

The maximum CO₂ is emitted into the atmosphere by

Trees

Combustion

Urea

Biomass burning

TRUE ANSWER : ?
YOUR ANSWER : ?

Main pollutants released from petroleum refineries is

CO₂, NO & SO₃

CO, SO₂ & H₂S

CO₂, H₂S & NO₂

SO₃, NO₂ & CO₂

TRUE ANSWER : ?
YOUR ANSWER : ?

The pH value of oxidised sewage is about

13.4

6.2

1.8

7.3

TRUE ANSWER : ?
YOUR ANSWER : ?

The main pollutant in waste water discharged from a petroleum refinery is oil (both in free and emulsified form). Free oil is removed by

Trickling filters

Aerated lagoons

Gravity separator having oil skimming devices

Biological oxygen pond

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a source of ozone emission in the atmosphere?

Dermatological photo-therapy equipments

Xerox machines

High voltage electrical equipments

Refrigerators

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the major constituents of waste/polluted water discharged from textile, pulp & paper, tanning, distillary, dairy and meat packing industries?

Natural organic products

None of these

Inorganic pollutants

Radioactive substances

TRUE ANSWER : ?
YOUR ANSWER : ?

Methyl iso-cynate (MIC) gas (TLV <1 ppm), which caused Bhopal gas tragedy in 1984 falls under the category of __________ toxic gas.

Very extremely

Extremely

Highly

Moderately

TRUE ANSWER : ?
YOUR ANSWER : ?

The Killer gas which caused Bhopal gas tragedy in 1984 was

Phosgene

Sulphur dioxide

Methyl iso-cynate (MIC)

Carbon monoxide

TRUE ANSWER : ?
YOUR ANSWER : ?

Presence of nitrates in water in excess of 50 ppm causes

Tooth decay

Asphyxiation

Mathenoglobenemia

Gastroentetitis

TRUE ANSWER : ?
YOUR ANSWER : ?

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