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A baffle wall is a sort of weir constructed at the end of the cistern to: i. To prevent any excess amount of discharge likely to pass through the module ii. The baffle plates are inserted in the eddy chamber sloping from the outer wall towards the inner wall iii. Head up the water to its upstream to such a height that hydraulic jump is formed Which of the following statement is correct?

A baffle wall is a sort of weir constructed at the end of the cistern to: i. To prevent any excess amount of discharge likely to pass through the module ii. The baffle plates are inserted in the eddy chamber sloping from the outer wall towards the inner wall iii. Head up the water to its upstream to such a height that hydraulic jump is formed Which of the following statement is correct? Correct Answer i, ii and iii

The baffle plates are inserted in the eddy chamber at required height sloping towards the outer wall which helps in preventing any excess discharge to pass through the module. It dissipates the energy by creating an upward rotational flow spinning in between two successive baffles. The number of baffles coming into action depends on the variation in the head.

Related Questions

Two centrifugal pumps P and R are available for use in a pipe flow system and their head-discharge characteristics are as follows. Pump P Pump R Discharge (cumecs) Head (m) Discharge (cumecs) Head (m) 0 40 0 45 0.12 35 0.14 40 0.2 28 0.24 35 0.3 18 0.3 28   The following statements (S1, S2, and S3) pertain to the head and discharge values during actual operation. Neglect losses in the system. Which of the following statements are correct? S1: When the two pumps P and R are connected in parallel, the discharge is 0.36 cumecs corresponding to a head of 35 m. S2: When the two pumps P and R are connected in parallel, the discharge is 0.36 cumecs corresponding to a head of 70 m. S3: When the two pumps P and R are connected in series, the discharge is 0.3 cumecs corresponding to a head of 46 m.
In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.
The discharge over a rectangular weir, considering the velocity of approach, is (where H1 = H + Ha)
(H1 = Total height of water above the weir, H = Height of water over the crest of the weir and Ha = Height of water due to velocity of approach)
The radius of a cylindrical cistern is 10 metres and its height is 15 metres. Initially the cistern is empty. We start filling the cistern with water through a pipe whose diameter is 50 cm. Water is coming out of the pipe with a velocity of 5 m/sec. How many minutes will it take in filling the cistern with water ?
Which of the following statements are true with regard to energy dissipation below a dam? (i) If the upper conjugate depth of a hydraulic jump is below the tailwater, little energy will be dissipated (ii) An upturned bucket will protect the dam from scour by moving material toward the dam. (iii) A secondary dam may increase tailwater height, thereby causing a hydraulic jump to form at the toe of the main dam. (v) A slopping apron above streambed level may be used to control the hydraulic jump so that it occurs on the apron. 
Consider the following statements with respect to weir under discussion: 1. Its design corresponds to soft sandy foundation. 2. The difference in weir crest and downstream river bed may not exceed 3. When water passes over it, the longitudinal location of the formation of a hydraulic jump is variable. This weir is of the type
A pipe, working at full speed, can fill an empty cistern in 1 hour. However, during the first hour it worked at one-twenty-fourth of its capacity, during the second hour at one-twelfth of its capacity, during the third hour at one-eighth of its usual capacity, during the fourth hours at one-fourth of its usual capacity and during the fifth hour it was only one-half as efficient as it was supposed to be. A second pipe also displayed similar performance, but if it worked at full speed would have filled the empty cistern in 2 hours. Together with a drain pipe that drained water out of the tank a constant rate, the empty cistern could be filled in 5 hours, all the three pipe working concurrently. How many hours will it take the drain pipe to empty the filled cistern if no other pipe was functioning during the time?
P. A weir is a hydraulic structure where majority or the entire ponding is achieved by a raised crest and smaller part or nil part by the shutters. Q. A weir is a hydraulic structure that is made by constructing the width of the channel only. R. A barrage is a hydraulic structure that is made by creating a choking condition only. S. A barrage is a hydraulic structure where majority or the entire ponding is achieved by a shutter and smaller part or nil part by the raised crest. Identify the correct statements in the above.
A cistern is fitted with many inlets and outlet taps. All inlet taps fill the cistern at the same rate and outlet taps empty the cistern at the same rate. The empty cistern gets filled in 10 hours when 9 inlet and 5 outlet taps are opened. It takes 30 hours when 6 inlets and 5 outlets are opened. How much time does it take for the empty cistern to completely get filled if 2 inlets and 2 outlet taps are opened?
Pipes A, B and C are attached to an empty cistern. The first two can fill the cistern in 7 and 10.5 hours, respectively, whereas the third can drain the cistern, when completely filled, in 6 hours. If all the three pipes are turned on simultaneously when the cistern is half-full, how many hours will be needed to fill the cistern?