Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in a – McqOptions

MCQOPTIONS

1.	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.
Answer» C. photochemical reaction in polluted atmosphere.

Discussion

No Comment Found

Related MCQs

Coal mines drainage waste water (acidic in nature) results from the earth\'s water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before sta
Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called
\'Particulate\' air pollutants are finely divided solids and liquids. Which of the following is not a \'particulate\' ?
The maximum CO 2 is emitted into the atmosphere by
Which of the following plants does not emit appreciable amount of SO 2 in atmosphere ?
Exposure to SO 2 containing chimney gases results in the
There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth's surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about __________ Â°C/km.
Beyond what concentration of H 2 S in air, acute danger to human life exists ?
TLV of NO 2 & NO exposure for the human being is 5 & 25 ppm respectively. Prolonged exposure of human being to NO 2 causes
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