Q. What should be the diameter of the sewer when the self cleansing velocity is 60cm/Sec?

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Q. The maximum velocity at which no abrasion takes place is called _______

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Q. The non scouring velocity is 260cm/Sec. The type of material of the sewer is __________

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Q. The non scouring velocity required for cast iron sewer pipes is __________

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Q. Which of the following is incorrect regarding circular sewer?

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Q. A circular section of sewer gives _______ area for a given perimeter.

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Q. What is the wetted perimeter of a circular section of sewer?

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Q. The hydraulic mean depth of a circular section running full is __________

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Q. The proportional depth of a circular sewer running partially half is __________

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Q. The proportional perimeter of a circular sewer running partially half where K is the central angle subtended at a circular section of sewer is __________

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Q. The diameter of the circular sewer is 0.2m. The desired depth of flow is __________

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Q. The diameter of a circular sewer is 0.8m. The desired depth of flow is __________

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Q. A circular sewer having 0.4m diameter is flowing with velocity 2m/Sec. If the gradient of sewer is 1 in 90. Find the value of Chezy’s coefficient?

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Q. Which of the following sewer is called as an ovoid sewer?

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Q. Egg shaped sewers are more suitable in a combined system during dry weather flow.

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Q. Which of the following is incorrect regarding Egg shaped sewer?

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Q. The upper portion of Egg shaped sewer is called as _____

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Q. The Egg shaped sewer provides ____ velocity for low flows over the circular sewer of equal capacity.

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Q. The lower portion of Egg shaped sewer is known as _____

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Q. The height of standard section of Egg shaped sewer is ______ the new shaped section.

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