ENVIRONMENTAL ENGINEERING IN CE QUIZ

The length of rectangular sedimentation tank should not be more than(Where ‘B’ is the width of the tank)

8B

2B

4B

B

TRUE ANSWER : ?
YOUR ANSWER : ?

Presence of high concentration of ozone and smog in atmospheric air causes the

Cracking of rubber products

Damage of electrical insulator on high tension power line

Fading of dye on textiles

Embrittlement & decrease of folding resistance of paper

TRUE ANSWER : ?
YOUR ANSWER : ?

Black smoke coming out of the chimney of a furnace is an indication of the use of __________ in the furnace.

Large quantity of excess combustion air

Pulverised coal as fuel

Low amount of excess combustion air

Hydrocarbon fuel

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not an air pollutant?

Pesticides

Ozone

Metallic powders

Carcinogens

TRUE ANSWER : ?
YOUR ANSWER : ?

Most of the atmospheric air pollutants are present in large quantity in

Stratosphere

Trophosphere

Thermosphere

Mesosphere

TRUE ANSWER : ?
YOUR ANSWER : ?

Hardy cross method of analysis of distribution system(i) Involves successive trials(ii) Takes economic aspects into account(iii) Is time consuming

Only (i)

(i) and (ii)

(i) and (iii)

All are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

Presence of a certain minimum quantity of flourine is desirable in potable water to prevent

Scale formation

Dental cavities

Corrosion

Water-borne disease

TRUE ANSWER : ?
YOUR ANSWER : ?

Permissible safe limit (TLV) of __________ toxic gas is 100-1000 parts per million (ppm).

Highly

Moderately

Extremely

Very extremely

TRUE ANSWER : ?
YOUR ANSWER : ?

Thermal pollution due to excessive heat & temperature in the working place causes

Fatigue

High breathing rate

Reduction in working efficiency of manpower

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a manmade source of air pollution?

Automobile exhaust

All of these

Forest fire

Bacterial action in soil and swamp areas

TRUE ANSWER : ?
YOUR ANSWER : ?

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