Question: Secondary treatment uses __________ to consume wastes.
[A].micro-organisms
chemicals
filtration
none of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Water Treatment
Which of the following chemical is sometime added in the process of coagulation and flocculation?
Question: Which of the following chemical is sometime added in the process of coagulation and flocculation?
[A].Aluminum sulphate
Aluminum oxide
Calcium chloride
None of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Sedimentation is a physical process used in wastewater treatment to
Question: Sedimentation is a physical process used in wastewater treatment to
[A].remove particles that are less dense than water
remove particles that are more dense than water
remove the pertinacious material from the water
none of the above
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
The common methods used for disinfection in waste water treatment plants are
Question: The common methods used for disinfection in waste water treatment plants are
[A].chlorination
UV light
both (a) and (b)
Phenolic solvent
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
The chemical oxygen demand (COD)measures the
Question: The chemical oxygen demand (COD)measures the
[A].amount of oxygen required for growth of microorganisms in water
amount of oxygen that would be removed from the water in order to oxidize pollution
amount of oxygen required to oxidize the calcium present in waste water
none of the above
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
The water being used in dairy industry should contain not more than
Question: The water being used in dairy industry should contain not more than
[A].5 proteolytic and/or lipolytic organisms per ml
10 proteolytic and/or lipolytic organisms per ml
15 proteolytic and/or lipolytic organisms per ml
20 proteolytic and/or lipolytic organisms/ml
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Coliform bacteria in water is an indication of the presence of
Question: Coliform bacteria in water is an indication of the presence of
[A].radioactive wastes
excess fertilizer
decaying animals and plants
human feces
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Lagoons may be characterized as
Question: Lagoons may be characterized as
[A].anaerobic
facultative
aerated
all of these
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
The activated sludge process is sometime referred as
Question: The activated sludge process is sometime referred as
[A].fluid bed biological oxidation system
fixed bed biological oxidation system
turning bed biological oxidation system
none of the above
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
The activated sludge process consists of returning a portion of the clarifier
Question: The activated sludge process consists of returning a portion of the clarifier
[A].effluent water entering the reactor
influent water coming out of the reactor
influent water entering the reactor
effluent water coming out of the reactor
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.