Microbiology of Waste Water

YOU CAN DOWNLOAD 200+ SUBJECTS PDF BOOK FOR COMPETITIVE EXAMINATIONS

CLICK HERE TO DOWNLOAD

Microbiology of Waste Water

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is generally not referred to the sewerage system?
A
Sanitary sewers
B
Storm sewers
C
Combined sewers
D
Solid sewers
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is not employed as an oxidation method?
A
Oxidation ponds
B
Trickling filters
C
Contact aerators
D
All of these
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following statement is not correct?
A
The use of 25-40$^\circ$C temperatures allows the biogas production to be more stable
B
The use of 25-40$^\circ$C temperatures does not destroy potentially harmful bacteria
C
The use of 25-40$^circ$C temperatures destroys potentially harmful bacteria
D
None of the above
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Activated sludge contains large number of
A
bacteria
B
yeasts and molds
C
protozoa
D
all of these
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A dense bacterial population caught in a tangled web of fibers sticking to a surface describes
A
coagulation
B
a biodisc
C
a biofilm
D
the membrane filter technique
There are 5 questions to complete.