QuizMaster

Question: The water being used in dairy industry should contain not more than
[A].

5 proteolytic and/or lipolytic organisms per ml

[B].

10 proteolytic and/or lipolytic organisms per ml

[C].

15 proteolytic and/or lipolytic organisms per ml

[D].

20 proteolytic and/or lipolytic organisms/ml

Answer: Option A

Explanation:

No answer description available for this question.

Question: Coliform bacteria in water is an indication of the presence of
[A].

radioactive wastes

[B].

excess fertilizer

[C].

decaying animals and plants

[D].

human feces

Answer: Option D

Explanation:

No answer description available for this question.

Question: Lagoons may be characterized as
[A].

anaerobic

[B].

facultative

[C].

aerated

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: The activated sludge process is sometime referred as
[A].

fluid bed biological oxidation system

[B].

fixed bed biological oxidation system

[C].

turning bed biological oxidation system

[D].

none of the above

Answer: Option A

Explanation:

No answer description available for this question.

Question: The activated sludge process consists of returning a portion of the clarifier
[A].

effluent water entering the reactor

[B].

influent water coming out of the reactor

[C].

influent water entering the reactor

[D].

effluent water coming out of the reactor

Answer: Option C

Explanation:

No answer description available for this question.

Question: Conventional tertiary treatment is
[A].

chemical coagulation and flocculation

[B].

filtration

[C].

sedimentation

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: The methods used for biological treatment are
[A].

lagoon

[B].

activated sludge process

[C].

oxidation ditches

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: Biological oxidation processes usually referred as biological treatment, are the most common form of
[A].

primary treatment

[B].

secondary treatment

[C].

tertiary treatment

[D].

all of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: BOD stands for
[A].

biochemical oxygen demand

[B].

british oxygen demand

[C].

british oxygen depletion

[D].

biological oxygen depletion

Answer: Option A

Explanation:

No answer description available for this question.

Question: Application of quaternary ammonium compounds as sanitizing agents tends to
[A].

favor gram positive bacteria

[B].

decrease gram positive bacteria

[C].

increase the percentage of gram(-)ve rods on utensils

[D].

none of the above

Answer: Option C

Explanation:

No answer description available for this question.