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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. Settling tank efficiency is reduced by _______

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

View solution

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

View solution

Q. What will be the surface area of the basin for a flow of 2*10⁶ litre per day having a surface loading rate 10,000 litre/day/m²?

View solution

Q. The detention period of the vertical flow clarifier is _______

View solution

Q. The design value of surface loading for horizontal flow circular sedimentation is _______

View solution

Q. Detention time for a circular tank is given by _______

View solution

Q. The sedimentation basin should be made as deep as possible.

View solution

Q. What is formed when coagulant is added to water?

View solution

Q. The chemical composition of Alum is _____________

View solution

Q. The chemical compound which is insoluble in water, formed when alum is added to water is _____________

View solution

Q. Which gas is released when alum is added to water?

View solution