Q. ‘C’ in the following figure represents the ________

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Q. The detention period of a flash mixer is _________________

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Q. Which of the following represents the impeller shaft in the following figure?

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Q. When impurities are separated by the gravitation of settling particles, the operation is called _____

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Q. In which type of settling, sedimentation of discrete particles takes place?

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Q. In which settling type, dilute suspension of particles takes place?

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Q. In which type of sedimentation, flocculent suspension of intermediate concentration takes place?

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Q. In which type of sedimentation, flocculent suspension of high concentration takes place?

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Q. What is the settling velocity of the particle if its diameter is 2 * 10⁻³cm. Given G=2.65, viscosity v=8 * 10⁻³cm²/Sec?

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Q. In a rectangular horizontal flow tank, the maximum permissible velocity is ____ m/Sec.

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Q. The time period for which the water is stored in a sedimentation tank is called _____

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Q. Settling velocity of a spherical body in a viscous fluid is given by ___________

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Q. In a fill and draw type sedimentation tank, a detention period of ____ hours is provided.

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Q. Which of the following represents the correct relation between displacement velocity and diameter of the particle?

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Q. The detention period of a rectangular tank is given by _______

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Q. The average time required by water to pass through the settling tank is called _______

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Q. Range of Displacement efficiency in the plain sedimentation tank is ___________

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Q. The quantity of water flowing per hour per unit horizontal area is called ________

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Q. Settling tank efficiency is reduced by _______

i. Eddy current
ii. Surface current
iii. Density current

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Q. 1cm per second settling velocity corresponds to a surface loading of ______ litre per day per m².

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