The structures, which are constructed on the river bed upstream of head regulator. With this clear water enters in canal such structures are called______________________?

Related Mcqs:

1. The water level required on the upstream side of a canal head regulator, so as to feed the off-taking canal with its full supply is called_________________?

   A. HFL
   B. FSL
   C. Pond level
   D. Canal level

2. A regulator is water controlling structure, it is provided at the head of canal to supply water from parent canal to the branch channel is called_______________________?

   A. Head Regulator
   B. Cross-Regulator
   C. Escape
   D. All are correct

3. The angle between a head regulator and entrance of water, for smooth entry of water in a canal is kept as _________________?

   A. 90°
   B. 100°
   C. 110°
   D. 120°

4. When a weir is constructed, the downstream .bed of the river goes on eroding and consequently causes progressive lowering of the bed on downstream of weir called__________________?

   A. Retrogression
   B. Lowering down of bed
   C. Ponding on down stream
   D. All are correct

5. An open cut in the canal bank. with bed and sides to escape canal water through a lead channel to mix water in a nearby drain is called _____________________?

   A. Inlet
   B. Out let
   C. Module
   D. Exit

6. When FSL of the canal is sufficiently above the bed level of drainage so that canal flows under syphonis action, the structure is called _____________________?

   A. Super passage
   B. Syphon – Aqueduct
   C. Canal-syphon
   D. Aqueduct

7. The under sluices in a weir are provided, at the level of upstream floor dispose off the sediment deposited on downstream is called______________________?

   A. Under sluices
   B. Head sluices
   C. Scouring sluices
   D. Sluice gates

8. Canals normally excavated directly from river without head regulator is called___________________?

   A. Perennial canals
   B. Inundation canals
   C. Non-perennial canals
   D. Water shed canals

9. The various works constructed on river side to control the flow and pass it safely from hydraulic structures are called ___________________?

   A. River controlling works
   B. River Training works
   C. Marginal Embankment
   D. Guide Banks

10. When the high flood level of the drain is sufficiently below the bed of the Canal that the drainage water flows freely under gravity, such structure is called___________________?

    A. Aqueduct
    B. Syphon-aqueduct
    C. Cross-Drainage
    D. Non-gravity structure