MCQs: The hydraulic mean depth (HMD. for an egg-shaped sewer flowing two-third full is_______________?
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MCQs: If Biochemical oxygen demand (BOD. of a town is 20000 kg/day and BOD per capita per day is 0.05 kg, then population equivalent of town is_________________?
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MCQs: For a country like India, where rainfall is mainly confined to one season, the suitable sewerage system will be________________?
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MCQs: A sewer that receives the discharge of a number of house sewers is called________________?
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MCQs: The type of valve which allows water to flow in one direction but prevents its flow in the reverse direction is____________________?
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MCQs: Hardy cross method of analysis of distribution system________________?
1) involves successive trials
2) takes economic aspects into account
3) is time consuming
The correct answer is?
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MCQs: Which of the following methods of analysis of water distribution system is most suitable for long and narrow pipe system ?
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MCQs: The layout of distribution system in which water flows towards the outer periphery is_________________?
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MCQs: As compared to cast iron pipes, steel pipes are______________?
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MCQs: Which of the following compounds is widely used for algae control ?
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MCQs: In lime-soda process________________?
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MCQs: As compared to higher pH values, the contact period required for efficient chlorination at lower pH values is___________________?
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MCQs: Which of the following chemical compounds can be used for dechlorination of water ?
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MCQs: The treatment of water with bleaching powder is known as________________?
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MCQs: The process in which the chlorination is done beyond the break point is known as_________________?
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MCQs: The disinfection efficiency of chlorine increases by_______________?
1) decreasing the time of contact
2) decreasing the temperature of water
3) increasing the temperature of water
The correct answer is ?
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MCQs: Double filtration is used_______________?
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MCQs: Disinfection of water results in______________?
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MCQs: Period of cleaning of slow sand filters is about________________?
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MCQs: Cleaning is done by________________?
1) scraping and removal in filters slow sand
2) back washing in slow sand filters
3) scraping and removal in filters rapid sand
4) back washing in rapid sand filters
The correct answer is
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