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UPSC Civil Service Exam Questions - Engineering

Q1:

If carbon monoxide is released at the rate of 0.03 m3/min from a gasolene engine and 50 ppm is the threshold limit for an 8-hour exposure, the quantity of air which dilutes the contaminant to a safe level will be

A 60 m3/min

B 600 m3/min

C 600 m3/s

ANS:A - 60 m3/min

Quality of air = 10^6÷50 * 0.03 = 600m^3/min.