Presence of nitrogen in high concentration in contaminated air reduces – McqOptions

MCQOPTIONS

1.	Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of N₂ in contaminated air at which it acts as a natural asphyxant is ≥ __________ percent.
A.	84
B.	88
C.	80
D.	92
Answer» B. 88

Discussion

No Comment Found

Related MCQs

TLV of lead for public sewer/waste water is about __________ ppm.
Which of the following is the most active zone of atmosphere in which weathering events like rain, storm & lightning occur ?
Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes
Color test of water is done with an instrument called
Presence of bacteria in potable (drinking) water causes
The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the
The resistance of water to the passage of light through it is a measure of the
Which of the following is the most major constituents of air pollutants ?
The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated.
Inhalation of silica dust by human being during hand drilling in mica mining, lead & zinc mining, silica refractory manufacture and in foundaries causes