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Test: Environmental Engineering - 4 - Civil Engineering (CE) MCQ


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25 Questions MCQ Test Environmental Engineering - Test: Environmental Engineering - 4

Test: Environmental Engineering - 4 for Civil Engineering (CE) 2024 is part of Environmental Engineering preparation. The Test: Environmental Engineering - 4 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Environmental Engineering - 4 MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Environmental Engineering - 4 below.
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Test: Environmental Engineering - 4 - Question 1

Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters?

Test: Environmental Engineering - 4 - Question 2

COD of raw municipal sewage may be in the range of about __________ mg/litre.

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Test: Environmental Engineering - 4 - Question 3

Maximum permissible turbidity in potable water is __________ ppm.

Test: Environmental Engineering - 4 - Question 4

Presence of __________ hardness is responsible for the temporary hardness in water.

Test: Environmental Engineering - 4 - Question 5

Dose of chlorine for disinfection of water is about __________ mg/litre of water.

Test: Environmental Engineering - 4 - Question 6

Atmospheric pollution caused by the exhaust gas of supresonic transport air-crafts is mostly in the atmospheric region called

Test: Environmental Engineering - 4 - Question 7

Iron & manganese present in the polluted water is removed by

Test: Environmental Engineering - 4 - Question 8

Water effluent generated in printing industry is decolourised by

Test: Environmental Engineering - 4 - Question 9

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

Test: Environmental Engineering - 4 - Question 10

Which is the most practical and economical method for removal of suspended solid matter from polluted water ?

Test: Environmental Engineering - 4 - Question 11

Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10�C, doubles the toxic effects of __________ present in it.

Test: Environmental Engineering - 4 - Question 12

__________ can not control the noise pollution.

Test: Environmental Engineering - 4 - Question 13

Ozone level is generally found to be depleted in India in the month of

Test: Environmental Engineering - 4 - Question 14

Noise level during normal conversation among men is about __________ decibles.

Test: Environmental Engineering - 4 - Question 15

'Particulate' air pollutants are finely divided solids and liquids. Which of the following is not a 'particulate' ?

Test: Environmental Engineering - 4 - Question 16

Foul odour and bad taste of water is removed by treating with

Test: Environmental Engineering - 4 - Question 17

Presence of __________ in water stream are deleterious to aquatic life.

Test: Environmental Engineering - 4 - Question 18

Acute danger to human life (i.e. death) exists, if the concentration of CO2 in atmospheric air exceeds __________ percent (by volume).

Test: Environmental Engineering - 4 - Question 19

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

Test: Environmental Engineering - 4 - Question 20

Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels.

Test: Environmental Engineering - 4 - Question 21

Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may cause

Test: Environmental Engineering - 4 - Question 22

Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan

Test: Environmental Engineering - 4 - Question 23

Presence of soluble organics in polluted water causes

Test: Environmental Engineering - 4 - Question 24

Which of the following pollutants, if present in atmosphere is detectable by its odour ?

Test: Environmental Engineering - 4 - Question 25

Exposure to chemicals having carcinogenic properties cause

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