The velocity in a large canal or channel measured at a depth of ___________________ gives the mean velocity using the current meter?

Related Mcqs:

1. The depth before the jump is always less then the depth after the jump. The depth before the jump is called initial depth and depth after the jump is called_______________?

   A. Afflux
   B. Final depth
   C. Sequent depth
   D. Down stream water depth

2. A water rise takes place on down stream of sloping glacis, when a stream of water moving with high velocity and low depth strikes another stream of flow moving with low velocity and high depth, such breakage in water surface is called______________?

   A. Water wave
   B. Water tide
   C. Hydraulic jump
   D. Afflux

3. 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

4. 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

5. An open cut given in a canal bank, suitably protected by stone pitching to the upland drainage water into the canal is called ___________________?

   A. Inlet
   B. Out let
   C. entrance
   D. Mixing

6. A structure provided when a large canal a big drainage channel approach other practically at the same level is called__________________?

   A. Super passage
   B. Level crossing
   C. Canal crossing
   D. Drainage crossing

7. if the depth of water in an open channel is greater than the critical depth, the flow is called________________?

   A. Critical depth
   B. Non-critical flow
   C. Sub-critical flow
   D. Shooting flow

8. The discharge through rectangular channel is maximum when Hydraulic mean depth m is equal to ______________?

   A. depth/ 3
   B. depth/ 2
   C. depth/ 4
   D. 2 / 3 depth

9. Mean velocity of flow in a river can be directly measured by means of ______________________?

   A. Dickne’s formula
   B. Current meter
   C. Surface floats
   D. Rod floats

10. 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