Which of the following CD works carry drainage over the canal?


Aqueduct and Syphon Aqueduct


Super passage and Syphon


Level-crossing and inlets outlets


Canal Syphon and Aqueduct

Answer: (b).Super passage and Syphon

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Q. Which of the following CD works carry drainage over the canal?

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Explore Relevant Multiple Choice Questions (MCQs)

Q. The canal water flows freely under gravity in which of the following CD works?

Q. A Super passage is the reverse of ______________

Q. Which of the following statement is not correct about canal syphon?

Q. Which CD work is generally adopted when the drainage discharge is small and the drain crosses the canal with its bed level equal to or slightly higher than the canal FSL?

Q. The drainage water is sometimes allowed to join the canal water to augment canal supplies through a hydraulic structure is called as ________________

Q. The crossing arrangement preferably made at the junction of a huge canal and a river stream carrying a short-lived high flood discharge at almost equal bed levels is a __________

Q. In a syphon aqueduct provided with a pucca bottom floor, the uplift will occur on __________

Q. Which of the following is a disadvantage of CD works carrying the canal over the discharge?

Q. In which of the following arrangement, the perennial drainage discharge is advantageously used?

Q. The number of inlets should be equal to the number of outlets.

Q. Which of the following is a disadvantage of CD works carrying drainage over the canal?

Q. The canal alignment is finalized only after finalizing the CD works.

Q. The relative bed levels of the canal and the drainage may be changed and manipulated by _________________

Q. The selection of the CD works depends on?

i. Selecting canal alignment
ii. Position of water-table and availability of dewatering equipment
iii. Suitability of soil for embankment
iv. Availability of funds

Q. Inlets and Outlets are inferior to aqueduct or super-passage type of work.

Q. In order to reduce the CD works, the artificial canals are generally aligned along the ridgeline.

Q. The type of canal alignment which involves maximum CD works is a ______________

Q. What is Lacey’s equation for fixing the approximate value of the required waterway for the drain?

Q. The maximum permissible reduction in the waterway from Lacey’s perimeter is _______

Q. The permissible velocity through the barrels is generally limited to _____________

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