A river training work is generally required when the river is_______________?

Related Mcqs:

1. River training for depth is achieved by_______________?

   A. groynes
   B. construction of dykes or leavees
   C. both (A) and (B)
   D. groynes and bandalling

2. Generally the weir is aligned at right angles to the direction of the main river current because______________?

   A. it ensures less length of the weir
   B. it gives better discharging capacity
   C. it is economical
   D. all of the above

3. Main purpose of mean water training for rivers is________________?

   A. flood control
   B. to provide sufficient depth of water in navigable channels, during low water periods
   C. to preserve the channel in good shape by efficient disposal of suspended and bed load
   D. all of the above

4. If there are two canals taking off from each flank of a river, then there will be____________________?

   A. one divide wall and one undersluice
   B. one divide wall and two undersluices
   C. two divide walls and one undersluice
   D. two divide walls and two undersluices

5. An aggrading river is a_________________?

   A. silting river
   B. scouring river
   C. both silting and scouring river
   D. neither silting nor scouring river

6. The meander pattern of a river is developed by_________________?

   A. average discharge
   B. dominant discharge
   C. maximum discharge
   D. critical discharge

7. A runoff river plant is____________?

   A. a low head scheme
   B. a medium head scheme
   C. a high head scheme
   D. none of the above

8. A runoff river plant_________________?

   A. is a medium head scheme
   B. generates power during peak hours only
   C. is suitable only on a perennial river
   D. has no pondage at all

9. The stage of river carrying a discharge of Q m7sec at a point is 10 m and slope of water surface is (1/4000). The discharge of a flood at the same point and same stage of 10 m with a water surface slope of(l/1000) will be________________?

   A. V2 Q m3/sec
   B. 0.5 Q mVsec
   C. 2 Q m3/sec
   D. 4 Q m3/sec

10. Tortuosity of a meandering river is the ratio of__________________?

    A. meander belt to meander length
    B. meander length to meander belt
    C. curved length along the channel to the direct axial length of the river reach
    D. direct axial length of the river reach to curved length along the channel