MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
Quiz
Chemical Engineering
Environmental Engineering In CE
Quiz 4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Q.1
Carcinogenic air pollutants cause
Bone decay
Cancer
Asphyxiation (suffocation)
Anemia
Q.2
TLV of ozone (O₃) and phosgene (COCl₂) in air is __________ ppm.
0.1
25
100
1000
Q.3
Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called
Grit
Dust
Powder
Smoke
Q.4
Exposure to chemicals having carcinogenic properties cause
Dermatitis (skin disorder)
Cancer
Asphyxiation (suffocation)
Asthma
Q.5
Exposure to chemicals having carcinogenic properties cause
Dermatitis (skin disorder)
Cancer
Asphyxiation
Asthma
Q.6
Beyond what concentration of H₂S in air, acute danger to human life exists?
50 ppm
100 ppm
300 ppm
700 ppm
Q.7
Smog is not formed due to the presence of __________ in the atmosphere.
SO₂
NOx
CO₂
Any of these
Q.8
Dose of chlorine for disinfection of water is about __________ mg/litre of water.
0.01
0.1
0.3
1
Q.9
Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes
Foaming
Odour nuisances
Undesirable plant growth
Turbidity
Q.10
Which of the following is a green house gas other than CO₂ ?
Methane
Nitrous oxide
Chlorofluro carbons (CFC)
All of the above
Q.11
TLV of NO₂ & NO exposure for the human being is 5 & 25 ppm respectively. Prolonged exposure of human being to NO₂ causes
Skin disorder
Bronchitis
Bone disease
Cancer
Q.12
Iron & manganese present in the polluted water is removed by
Simple filtration
Oxidation followed by settling & filtration
Chemical coagulation
Chlorination only
Q.13
Which of the following is not a source of ozone emission in the atmosphere?
Refrigerators
Xerox machines
Dermatological photo-therapy equipments
High voltage electrical equipments
Q.14
Carbon monoxide is a pollutant, which causes
Respiratory disease (e.g. asthma)
Asphyxiation (suffocation) leading to death
Retardation in crop growth
Damage to building materials like marble
Q.15
Which of the following pollutants is not emitted during volcanic eruptions?
SO₂
H₂S
CO
Hydrocarbons
Q.16
World's worst radioactive pollution was caused by nuclear reactor disaster which occured in
Arizona (U.S.A.)
Chernobyl (undivided U.S.S.R.)
Pensylvania (U.S.A.)
Moscow (U.S.S.R.)
Q.17
Inhalation of silica dust by human being during hand drilling in mica mining, lead & zinc mining, silica refractory manufacture and in foundaries causes
Asphyxiation (suffocation)
Shortness of breath
Tuberculosis
All of the above
Q.18
The main pollutant in waste water discharged from a petroleum refinery is oil (both in free and emulsified form). Free oil is removed by
Biological oxygen pond
Aerated lagoons
Trickling filters
Gravity separator having oil skimming devices
Q.19
Which of the following plants does not emit appreciable amount of SO₂ in atmosphere?
Thermal power plant
Petroleum refinery
Nitric acid plant
Sulphuric acid plant
Q.20
The term Biological Oxygen Demand (BOD) is used in relation to
Potable water
Cooling water
Distilled water
Industrial effluents
Q.21
Methyl iso-cynate (MIC) gas (TLV <1 ppm), which caused Bhopal gas tragedy in 1984 falls under the category of __________ toxic gas.
Moderately
Highly
Extremely
Very extremely
Q.22
Most of the atmospheric air pollutants are present in large quantity in
Stratosphere
Thermosphere
Trophosphere
Mesosphere
Q.23
Solid content in most of the domestic sewage is about __________ percent.
0.001
0.1
5
10
Q.24
Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the
Forestation
Rain
Green house effect
Vegetation
Q.25
The Killer gas which caused Bhopal gas tragedy in 1984 was
Phosgene
Methyl iso-cynate (MIC)
Carbon monoxide
Sulphur dioxide
Q.26
__________ substances present in sewage are removed in grit chamber during sewage treatment.
Organic
Fatty
Inorganic
Dissolved
Q.27
H₂S present in gaseous stream can be removed by adsorption on
Silica gel
Active carbon
Bog iron
Limestone powder
Q.28
Persons working in cement plants and limestone quarries are more prone to disease like
Cancer
Asthma
Silicosis
Flourosis (bone disease)
Q.29
Dissolved oxygen content in river water is around __________ ppm.
5
100
250
500
Q.30
Irradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water in
Food industry
Municipal sewage treatment
Petroleum refinery
Iron & steel plant
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page