The aqueduct or superpassage type of works are generally used when_______________?

Related Mcqs:

1. For wave action in dams, the maximum height of freeboard is generally taken to be equal to_______________?

   A. 0.5 hw B. 0.75 hw C. 1.25 hw D. 1.50 hw where hw is height of wave...

2. If D is the depth of scour below original bed, then the width of launching apron is generally taken as________________?

   A. 1.2 D B. 1.5 D C. 2.0 D D. 2.5 D...

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

   A. aggrading type B. degrading type C. meandering type D. both (A) and (B)...

4. 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...

5. The most suitable material for the central impervious core of a zoned embankment type dam is_______________?

   A. clay B. coarse sand C. silty clay D. clay mixed with fine sand...

6. A straight glacis type fall with a baffle platform and a baffle wall is called_____________?

   A. vertical dropfall B. glacis fall C. Montague type fall D. inglis fall...

7. In a Sarda type fall, rectangular crest is used for discharge upto______________?

   A. 6 cumecs B. 10 cumecs C. 14 cumecs D. 20 cumecs...

8. Hydrodynamic pressure due to earthquake acts at a height of_________________?

   A. 3H/47I above the base B. 3H747t below the water surface C. 4H/371 above the base D. 4H737t below the water surface where H is the depth of water...

9. The most suitable chemical which can be applied to the water surface for reducing evaporation is________________?

   A. methyl alcohol B. ethyl alcohol C. cetyl alcohol D. butyl alcohol...

10. The minimum size of stone that will remain at rest in a channel of longitudinal slope S and hydraulic mean depth R is given by______________?

    A. 4RS B. 11 RS C. 7RS D. 15 RS...