A. Moderately
B. Highly
C. Extremely
D. Very extremely
Related Mcqs:
- The Killer gas which caused Bhopal gas tragedy in 1984 was________________?
A. Phosgene
B. Methyl isocyanate (MIC)
C. Carbon monoxide
D. Sulphur dioxide - A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from ______________ ppm?
A. 1000 to 2000
B. 3000 to 6000
C. 6000 to 9000
D. 10000 to 100000 - Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about ______________ ppm (parts per million)?
A. 0.002
B. 0.2
C. 1.2
D. 4.8 - Permissible safe limit (TLV) of _____________ toxic gas is 100-1000 parts per million (ppm)?
A. Highly
B. Moderately
C. Extremely
D. Very extremely - Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in ‘gas chamber’ is about ______________ ppm?
A. < 1
B. 10-100
C. 100-200
D. 100-1000 - TLV of mercury in potable (drinking) water is about ______________ ppm?
A. 0.001
B. 0.1
C. 1
D. 5 - TLV of lead for public sewer/waste water is about ______________ ppm?
A. 1
B. 25
C. 150
D. 650 - TLV of ammonia, nitrogen dioxide and phenol vapor in air is ______________ ppm ?
A. 5
B. 100
C. 1000
D. 2000 - Out of the following, TLV of _______________ is maximum (about 500 ppm)?
A. Carbon dioxide
B. Toluene
C. Carbon disulphide
D. Acetaldehyde - ‘Safe limit’ called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the____________________?
A. Industrial chimney exhaust
B. Automobiles exhaust
C. Photochemical reaction in polluted atmosphere
D. Burning of domestic fuel
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