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

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. The field capacity is the water retained by a saturated soil after free drainage of surplus water to the ground water table but the water retained by a saturated soil after being centrifuged by a centrifugal force of 1000 times that of gravity is called________________?

   A. Soil moisture
   B. Equivalent moisture
   C. Field moisture
   D. Available moisture

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. According to Kennedy’s silt theory , the critical velocity is directly proportional to depth of flow _____________________?

   A. D0.64
   B. D0.65
   C. D0.66
   D. D0.67

6. The horizontal flow of water in irrigation channel or canal leading to water loss is called as:_________?

   A. Infiltration
   B. Percolation
   C. Seepage
   D. All of these

   Submitted by: Shafiq Rehman

7. The depth of water in a channel, corresponding to minimum specific energy is called ________________?

   A. Normal depth
   B. Critical depth
   C. Full supply depth
   D. None of these

8. To dispose of the surplus water from dam, a water way is constructed called________________?

   A. Water escape
   B. Spillway
   C. Channel
   D. All are correct

9. The discharge through a rectangular channel will be maximum. if its depth is_______________?

   A. Twice the width
   B. Equal to its width
   C. Half of its width
   D. one-third of its with

10. 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