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Select the correct statement from the following:
  • a)
    The canal flows below the drain in aqueduct and syphon aqueduct, and the canal flows above the drain in super passage and syphon.
  • b)
    The drain flows below the canal in aqueduct and syphon aqueduct, and the drain flows above the canal in super passage and syphon.
  • c)
    It is engineer's choise to let the drain flow above or below the canal in aqueduct and syphon aqueduct and also in super passage and syphon.
  • d)
    The above statements are wrong
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Select the correct statement from the following:a)The canal flows belo...
Statement B: The drain flows below the canal in aqueduct and syphon aqueduct, and the drain flows above the canal in super passage and syphon.

The given statement is correct. Let's discuss each type of structure individually to understand why statement B is correct.

Aqueduct:
An aqueduct is a structure designed to carry water over a river, valley, or other obstacles. In an aqueduct, the canal carries water and flows above the drain. The drain is constructed below the canal to collect any excess water or seepage from the canal. This prevents water from accumulating and causing damage to the aqueduct structure.

Syphon Aqueduct:
A syphon aqueduct is a type of aqueduct that uses a syphon to carry water across a valley or depression. In a syphon aqueduct, the canal also flows above the drain. The drain is placed below the canal to collect any excess water or seepage. The drain helps in maintaining the stability of the structure and prevents waterlogging.

Super Passage:
A super passage is an underground passage constructed to carry a canal across natural or artificial obstacles. In a super passage, the drain flows above the canal. This arrangement allows any excess water or seepage from the canal to flow into the drain. The drain helps in maintaining the stability of the structure by preventing water accumulation.

Syphon:
A syphon is a pipe or tube that carries water over an obstacle by using atmospheric pressure. In a syphon, the drain also flows above the canal. The drain is placed above the canal to collect any excess water or seepage. This arrangement ensures the proper functioning of the syphon and prevents waterlogging.

Therefore, statement B is correct because the drain flows below the canal in aqueduct and syphon aqueduct, and the drain flows above the canal in super passage and syphon.
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Community Answer
Select the correct statement from the following:a)The canal flows belo...
A cross drainage work is a structure constructed for carrying a canal across a natural drain or river intercepting the canal to dispose drainage water without mixing with the continuous canal supplies.
Types of Cross Drainage Works:-
Based on the relative bed levels, water levels of the canal and the drain and their relative discharge the Cross Drainage works are of the following types:-
(1) Cross drainage works carrying the Canal over the Natural Drain:
(i) Aqueduct
  • An aqueduct is a hydraulic structure which carries a canal (through a trough) across and above the drainage similar to a bridge in which instead of the road or a railway, a canal is carried over a natural drain.
  • In the case of an aqueduct, HFL (highest flood level) of the drainage should remain lower than the level of the underside of the canal trough.
  • The drain flows at atmospheric pressure under the work.
  • Generally, an inspection road is provided along with the trough
(ii) Syphon aqueduct
  • A syphon aqueduct is a cross drainage structure similar to an aqueduct except that the streambed is depressed locally where it passes under the trough of the canal and the barrels discharges the streamflow under pressure.
  • A syphon aqueduct is constructed where the water surface level of the drain at high flood is higher than the canal bed.
  • The horizontal floor of the barrels is provided with slopes at its ends to join the drain bed on either side.
  • The drain water flows under pressure through the barrels which act as inverted syphons and hence this cross drainage work is known as syphon aqueduct.
(2) Cross drainage works carrying the natural drain over the canal-
(i) Super passage
A super passage is also similar to a bridge in which the natural drain is carried over the canal.
  • A super passage is reverse of an aqueduct.
  • A super passage is constructed where the bed of the drain is well above the canal F.S.L
  • The canal flows at atmospheric pressure under the work.
  • In this case it is not possible to provide an inspection road along the canal.
(ii) Syphon
  • A syphon is similar to a syphon aqueduct with the difference that in the case of a syphon the canal water is carried through the barrels under the drain.
  • A syphon is constructed where the full supply level of the canal is higher than the bed of the drain.
  • The barrels in this case also act as inverted syphons through which the canal water flows under pressure.

(3) Cross drainage works admitting the drain water into the canal-
In this type of cross drainage works, the canal water and the drain water are allowed to intermingle with each other. This may be achieved by the following two types of cross drainage works:-
(i) Level crossing
(ii) Inlet and outlet
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Select the correct statement from the following:a)The canal flows below the drain in aqueduct and syphon aqueduct, and the canal flows above the drain in super passage and syphon.b)The drain flows below the canal in aqueduct and syphon aqueduct, and the drain flows above the canal in super passage and syphon.c)It is engineers choise to let the drain flow above or below the canal in aqueduct and syphon aqueduct and also in super passage and syphon.d)The above statements are wrongCorrect answer is option 'B'. Can you explain this answer?
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Select the correct statement from the following:a)The canal flows below the drain in aqueduct and syphon aqueduct, and the canal flows above the drain in super passage and syphon.b)The drain flows below the canal in aqueduct and syphon aqueduct, and the drain flows above the canal in super passage and syphon.c)It is engineers choise to let the drain flow above or below the canal in aqueduct and syphon aqueduct and also in super passage and syphon.d)The above statements are wrongCorrect answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Select the correct statement from the following:a)The canal flows below the drain in aqueduct and syphon aqueduct, and the canal flows above the drain in super passage and syphon.b)The drain flows below the canal in aqueduct and syphon aqueduct, and the drain flows above the canal in super passage and syphon.c)It is engineers choise to let the drain flow above or below the canal in aqueduct and syphon aqueduct and also in super passage and syphon.d)The above statements are wrongCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select the correct statement from the following:a)The canal flows below the drain in aqueduct and syphon aqueduct, and the canal flows above the drain in super passage and syphon.b)The drain flows below the canal in aqueduct and syphon aqueduct, and the drain flows above the canal in super passage and syphon.c)It is engineers choise to let the drain flow above or below the canal in aqueduct and syphon aqueduct and also in super passage and syphon.d)The above statements are wrongCorrect answer is option 'B'. Can you explain this answer?.
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