Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Home
»
Chemical Engineering
»
Environmental Engineering
From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm.
1
5
50
500
Correct Answer:
5
← Previous Question
Next Question→
More Questions from
Environmental Engineering
The function of skimming tank in sewage treatment is to remove __________ substances.
Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes
The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant?
The principal gas evolved from sludge digestion tank is
Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes
Infective bacteria in water is killed by the __________ process.
Which of the following pollutants is absent in the emissions from a fertiliser plant?
Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in 'gas chamber' is about __________ ppm.
The term Biological Oxygen Demand (BOD) is used in relation to
Maximum permissible limit of mercury in human blood is __________ micrograms/100 c.c.
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments