Chemical Engineering - Environmental Engineering

36.
Most of the bacteria in sewage are
parasitic
saprophytic
anerobic
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

37.
Which of the following is the most major constituents of air pollutants ?
Oxides of sulphur
Oxides of nitrogen
Carbon monoxide
Hydrogen sulphide
Answer: Option
Explanation:
No answer description is available. Let's discuss.

38.
Shouting by a man at his full voice corresponds to a voice level of about __________ decibels.
25
50
80
120
Answer: Option
Explanation:
No answer description is available. Let's discuss.

39.
Carbonaceous particles having size less than 1 μm are called
grit
aggregates
aerosols
smoke
Answer: Option
Explanation:
No answer description is available. Let's discuss.

40.
__________ substances present in sewage are removed in grit chamber during sewage treatment.
Organic
Fatty
Inorganic
Dissolved
Answer: Option
Explanation:
No answer description is available. Let's discuss.