Environmental Engineering MCQs
The answers of questions marked with * are subject to change with time
Last Updated: 07 Jun 2022
- Bhopal gas tragedy in 1984 occurred due to leakage of:
A. Methane
B. Methyl Isocyanate (MIC)
C. Carbon Monoxide
D. Hydrochloric Acid
IB-3-25
Bhopal Disaster also known as Bhopal Gas Tragedy, was Methyl Isocyanate (MIC) 40 tonnes gas leakage incident on night of 2-3 December 1984 at Union Carbide India Limited Plant (Pesticide plant).
Deaths: 3,787
Location: Bhopal, Madhya Pradesh, India
- Methyl iso-cynate (MIC) gas (TLV <1 ppm), which caused Bhopal gas tragedy in 1984 falls under the category of _____ toxic gas.
A. Moderately
B. Highly
C. Extremely
D. Very Extremely
IB-2-44
- Persons working in cement plants and limestone quarries are more prone to disease like:
A. Asthma
B. Silicosis
C. Cancer
D. Siderosis
IB-1-2+4-13
- Inhalation of silica dust by human being causes
A. Asphyxiation
B. Shortness of breath
C. Tuberculosis
D. Both (b) & (c)
IB-6-12
- Siderosis is a disease caused by the inhalation of _____dust.
A. Silica
B. Coal
C. Iron
D. None of above
IB-1-6
- Pneumoconiosis is a disease caused by the inhalation of _____dust.
A. Iron
B. Silica
C. Uranium ore
D. Coal
IB-1-10
- Workers working in leather tanning & manufacturing units are more prone to disease like:
A. Asthma
B. Dermatitis
C. Cancer
D. Siderosis
IB-2-20
- Workers working in _____ industry are most prone to white lung cancer.
A. Coal mining
B. Limestone mining
C. Textile
D. Asbestos
IB-3-6
- Higher concentration of nitrogen dioxide in atmospheric air causes
A. Cancer
B. Bronchitis
C. Asphyxiation
D. Corrosion
IB-3-21
- Presence of nitrates in water in excess of 50 ppm causes
A. Gastroenteritis
B. Mathenoglobenemia
C. Asphyxiation
D. Tooth decay
IB-3-9
- Main pollutant present in automobile exhaust is
A. CO2
B. CO
C. NO
D. Hydrocarbons
IB-2-18
- Inhalation of lead components present in automobile exhaust (using leaded petrol) causes
A. blood poisoning
B. anemia
C. nervous system disorder
D. All of above
IB-1-3
- Fluorosis (a bone disease) is caused by the presence of high concentration of _____ in water and _____ in atmospheric air.
A. hydrocarbons
B. fluorine & hydrogen fluoride
C. hydrogen sulphides
D. nitrogen dioxide
IB-1-4
- Fluorosis is caused due to the presence of excessive amount of _____ in drinking water.
A. Mercury
B. Lead
C. Fluoride
D. Arsenic
IB-5-6
- Presence of a certain minimum quantity of flourine is desirable in potable water to prevent
A. Scale formation
B. Dental cavities
C. Water-borne disease
D. Corrosion
IB-4-30
- Exposure to chemicals having carcinogenic properties cause
A. dermatitis
B. cancer
C. asphyxiation
D. asthma
IB-1-4/2-50
- Radioactive solid nuclear wastes are disposed off by
A. high temperature incineration
B. pathological incineration
C. underground burial in concrete containers
D. pyrolysis
IB-7-3
- What are the methods of treatment & disposal of radioactive wastes?
A. Evaporation & chemical precipitation
B. Biological methods & adsorption in ion exchange materials
C. Fixing into a solid mass with cement and sinking deep in the sea.
D. All of above
IB-2-16
- Radioactive substances present in the polluted water stream can be removed by
A. Biological oxygen treatment
B. Coagulation and filtration
C. Adsorption in ion exchange materials
D. None of above
IB-4-10
- Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters?
A. I-131
B. Sr-90
C. Au-198
D. Ra-226
IB-2-26
- Maximum permissible limit of industrial noise as recommended by World Health Organization (WHO) is ___ during day and ___ during night.
A. 35 dB and 40 dB
B. 95 dB and 100 dB
C. 100 dB and 50 dB
D. 75 dB and 70 dB
IB-4-19
- Noise pollution level in a chemical plant is expressed in
A. Roentgen
B. Decibel
C. Hertz
D. None of above
IB-3-30
- Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about _____ decibels.
A. 20
B. 60
C. 90
D. 120
IB-2-19/3-31