Users Also Read
MCQ's Search Engine
Electrical Engineering
Mechanical Engineering
Civil Engineering
Automobile Engineering
Chemical Engineering
Computer Engineering
Electronics Engineering
Medical Science Engg
Threshold Limit Value (TLV) is the maximum allowable concentration (i.e. safe limit) of pollutants in air. Safe limit for SO2 in air is __________ ppm. | |
A. | 5 [Correct Answer] |
B. | 500 [Wrong Answer] |
C. | 1000 [Wrong Answer] |
D. | 2000 [Wrong Answer] |