Civil Engineering - Irrigation

Exercise :: Irrigation - Section 3

31. 

In a syphon aqueduct

A. drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough
B. drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough
C. canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough
D. canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough.

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

32. 

Which one of the following statements is correct ?

A. The canal system and the drainage system are complementary
B. The canal system runs on ridges, gets divided into smaller channels and spreads its water on the land
C. The drainage system runs along the lowest line, collects drainage water from the slopes and joins the main stream
D. All the above.

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

33. 

Garnett's diagrams are used for graphical solution of design equations of a canal by

A. Lacey's theory
B. Kennedy's theory
C. Gibb's theory
D. Lindlay theory.

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

34. 

A current meter measures the velocity of flow, if it is held

A. on the surface of water
B. at the bottom of channel
C. at any point within the cross-section
D. none of these.

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

35. 

In a concrete canal the approximate permissible velocity of water should not exceed

A. 0.5 m/sec
B. 1 m/sec
C. 1.5 m/sec
D. 2 m/sec
E. 2.5 m/sec

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.