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Biochemical Engineering
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Water Treatment
Comments
Question
BOD stands for
Options
A. biochemical oxygen demand
B. british oxygen demand
C. british oxygen depletion
D. biological oxygen depletion
Correct Answer
biochemical oxygen demand
Water Treatment problems
Search Results
1. Sanitizers used for rubber made equipments are
Options
A. strong acids
B. strong alkalis
C. combination of both
D. none of these
Show Answer
Scratch Pad
Discuss
Correct Answer: strong alkalis
2. The activated sludge process consists of returning a portion of the clarifier
Options
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
Show Answer
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Discuss
Correct Answer: influent water entering the reactor
3. Secondary treatment uses __________ to consume wastes.
Options
A. micro-organisms
B. chemicals
C. filtration
D. none of these
Show Answer
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Discuss
Correct Answer: micro-organisms
4. The sterilization method depends
Options
A. nature of additive
B. volume and feed rate
C. both (a) and (b)
D. none of these
Show Answer
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Discuss
Correct Answer: both (a) and (b)
5. The filter material used for air filtration system is/are
Options
A. glass wool
B. glass fibre
C. norite
D. all of the above
Show Answer
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Discuss
Correct Answer: all of the above
6. Which of the following substances are commonly used in a filter?
Options
A. Charcoal
B. Sand
C. Both (a) and (b)
D. Aluminum chloride
Show Answer
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Discuss
Correct Answer: Both (a) and (b)
7. Sanitizer used specifically for vitreous enamel are
Options
A. strong alkalis
B. strong acids
C. weak alkali with sodium silicate
D. none of these
Show Answer
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Discuss
Correct Answer: weak alkali with sodium silicate
8. The activated sludge process is sometime referred as
Options
A. fluid bed biological oxidation system
B. fixed bed biological oxidation system
C. turning bed biological oxidation system
D. none of the above
Show Answer
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Correct Answer: fluid bed biological oxidation system
9. From the following sanitizers which one comes under category of surface active agents?
Options
A. Tetra phosphate
B. Teepol
C. Meta phosphate
D. None of these
Show Answer
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Discuss
Correct Answer: Teepol
10. The ultimate source of water is
Options
A. rivers and lakes
B. dew and forest
C. rain and snow
D. underground and surface
Show Answer
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Discuss
Correct Answer: rain and snow
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More in Biochemical Engineering:
Agitation and Aeration
Downstream Processing
Enzymes and Application
Enzymes and Kinetics
Fermentation Kinetics
Fermentation Reactors
Fluid Flow
Immobilized Enzyme
Sterilization
Water Treatment