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.Management Sciences
A. 25
B. 50
C. 70
D. 85
Related Mcqs:
- High noise levels produced during operation of fans and compressors can be reduced by using__________________?
- A. Mufflers (silencers) B. Acoustic absorbent C. Lagging of noisy duct D. None of these...
- Beyond what concentration of H2S in air, acute danger to human life exists ?
- A. 50 ppm B. 100 ppm C. 300 ppm D. 700 ppm...
- ‘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...
- Hazardous/polluting chemical industries should have an ‘exclusion zone’ with a green belt and general public access prohibited around it, covering a radius of _____________ metres?
- A. 100 B. 1000 C. 400 D. 4000...
- Atmospheric pollution caused by the exhaust gas of supersonic transport air-crafts is mostly in the atmospheric region called________________?
- A. Thermosphere B. Stratosphere C. Troposphere D. Mesosphere...
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