Noise level inside a jet airliner in normal flight is about ______________ decibels?
Noise level inside a jet airliner in normal flight is about ______________ decibels?
A. 80
B. 100
C. 125
D. 150
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Inhalation of silica dust causes a disease called__________________?
Inhalation of silica dust causes a disease called__________________?A. Bronchitis
B. Silicosis
C. Pneumoconiosis
D. None of thesePermissible safe limit (TLV) of _____________ toxic gas is 100-1000 parts per million (ppm)?
Permissible safe limit (TLV) of _____________ toxic gas is 100-1000 parts per million (ppm)?A. Highly
B. Moderately
C. Extremely
D. Very extremelyHigh concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes____________________?
High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes____________________?A. Cancer
B. Silicosis
C. Respiratory disease (e.g., asthma)
D. Reduced crop yieldWhich of the following is not a weightless pollutant ?
Which of the following is not a weightless pollutant ?A. SPM
B. Thermal pollution
C. Radioactive rays
D. Noise pollutionPresence of high concentration of ozone and smog in atmospheric air causes the __________________?
Presence of high concentration of ozone and smog in atmospheric air causes the __________________?A. Embrittlement & decrease of folding resistance of paper
B. Cracking of rubber products
C. Fading of dye on textiles
D. Damage of electrical insulator on high tension power lineMethyl isocyanate (MIC) gas (TLV
Methyl isocyanate (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