Questions and answers for exam Preparation

MCQs

Total Questions : 47 | Page 4 of 5 pages

Question 31. Calculate the depth of cut-off for scour holes for an irrigation channel of F.S.Q equal to 354 cumecs and H.F.Q of natural drainage equal to 600 cumecs. Assume the value of friction factor as 1.

7 m
7.5 m
10.5 m
8 m

Discuss Question

Answer: Option C. -> 10.5 m
Answer: (c).10.5 m

Question 32. Calculate the value of hydraulic mean radius for a channel designed by Lacey’s theory which has a mean velocity of 1m/sec. The silt factor can be taken as unity.

1 m
0.5 m
2 m
2.5 m

Discuss Question

Answer: Option D. -> 2.5 m
Answer: (d).2.5 m

Question 33. A partial contraction joint is the one in which?

both the concrete and reinforcing steel are interrupted
only the concrete is interrupted
only the reinforcement is interrupted
none of them is interrupted

Discuss Question

Answer: Option B. -> only the concrete is interrupted
Answer: (b).only the concrete is interrupted

Question 34. Which of the following is usually adopted for contraction and construction joints?

Rubber water bars
V-shape metal bars
PVC water bars
Z-shape metal bars

Discuss Question

Answer: Option C. -> PVC water bars
Answer: (c).PVC water bars

Question 35. Which of the following is not a movement joint?

Contraction joint
Expansion joint
Sliding joint
Construction joints

Discuss Question

Answer: Option D. -> Construction joints
Answer: (d).Construction joints

Question 36. Which of the following statement is not correct about canal syphon?

FSL of the canal is much above than the bed level of the drainage trough
To minimize the trouble of silting, a ramp is provided at the exit
The canal water flows under symphonic action
For siphoning small discharges, barrels are adopted

Discuss Question

Answer: Option D. -> For siphoning small discharges, barrels are adopted
Answer: (d).For siphoning small discharges, barrels are adopted

Question 37. The canal water flows freely under gravity in which of the following CD works?

Aqueduct and Super passage
Super passage and Syphon
Canal Syphon and Aqueduct
Level-crossing and inlets outlets

Discuss Question

Answer: Option A. -> Aqueduct and Super passage
Answer: (a).Aqueduct and Super passage

Question 38. The following data is available at the proposed site of a canal crossing. The most appropriate and economical CD work at the above site will be: