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…

Question: Inhibitors are used along with sanitizer to [A]. improve their action [B]. to prevent corrosion [C]. both (a) and (b) [D]. none of these Answer: Option B Explanation: No answer description available for this question.

Question: Sanitizer used specifically for vitreous enamel are [A]. strong alkalis [B]. strong acids [C]. weak alkali with sodium silicate [D]. none of these Answer: Option C Explanation: No answer description available for this question.

Question: Sanitizers used for rubber made equipments are [A]. strong acids [B]. strong alkalis [C]. combination of both [D]. none of these Answer: Option B Explanation: No answer description available for this question.

Question: Acid used mostly for removal of milk stone is [A]. phosphoric acid [B]. nitric acid [C]. gluconic acid [D]. tartaric acid Answer: Option B Explanation: No answer description available for this question.

Question: From the following sanitizers which one comes under category of surface active agents? [A]. Tetra phosphate [B]. Teepol [C]. Meta phosphate [D]. None of these Answer: Option B Explanation: No answer description available for this question.