Irrigation Engineering Practice Test 6

1. What is the most common metal used for water stops?

Annealed copper

Galvanised iron

Steel

Monel metal

2. Which of the following is a disadvantage of CD works carrying drainage over the canal?

The perennial canal is not open to inspection or maintenance

The damage caused by floods is not rare

The CD works are more liable to damage than the earthwork of the canal

The arrangement is generally constructed when the drain is very big as compared to the section of the canal

3. Deep vertical movement of water in the ground is called as ____________________

seepage

percolation

infiltration

runoff

4. Which of the following is a movement joint with complete discontinuity in both reinforcement and concrete and intended to accommodate either expansion or contraction of the structure?

Construction joints

Contraction joint

Expansion joint

Sliding joint

5. What is the formula for velocity through the pipe?

Total loss of head = Frictional loss + Velocity head at exit

Total loss of head = Entry loss + Frictional loss + Velocity head at exit

Total loss of head = Entry loss + Frictional loss

Total loss of head = Entry loss + Velocity head at exit

6. In which of the following arrangement, the perennial drainage discharge is advantageously used?

Inlets and Outlets

Aqueduct

Syphon

Level crossing

7. The expansion joints in floors and walls should normally be provided at a spacing of not more than ___________

50 m

30 m

55 m

45 m

8. A partial contraction joint is the one in which?

only the concrete is interrupted

only the reinforcement is interrupted

both the concrete and reinforcing steel are interrupted

none of them is interrupted

9. Which structure in the entire network of canals is a link between the government and the cultivators?

Weirs

Falls

Modules

Canal Escapes

10. The discharge through the open sluice is given by suppressed weir formula.

True

False