Irrigation Engineering Mock Test 9

10%

Question 1 of 10

1. The discharge passing over an ogee spillway per unit length of its apex line is proportional ___________________

H^3/2

H²

H^1/2

Question 1 of 10

Question 2 of 10

2. Which of the following spillway is an improvement over free overflow spillway?

Open channel spillway

Overflow spillway

Siphon spillway

Straight drop spillway

Question 2 of 10

Question 3 of 10

3. A 4 m diameter tunnel has been constructed through an earthen dam with a bell mouth entry. The water levels on the U/s and D/s sides of the dam are at RL 226 m and 210 m respectively. What will be the discharge through this outlet?

165 cumecs

104 cumecs

64 cumecs

216 cumecs

Question 3 of 10

Question 4 of 10

4. What is the value of abutment contraction coefficient for square abutment with headwall perpendicular to the direction of flow?

0.01

0.1

0.02

0.2

Question 4 of 10

Question 5 of 10

5. The working of Reinold’s gate is automatic.

True

False

Question 5 of 10

Question 6 of 10

6. A trash rack is not required at the entrance of a ____________________

morning glory spillway

high-head gate installation

siphon spillway

drum gate installation

Question 6 of 10

Question 7 of 10

7. Which of the following helps in dissipating the residual energy and to reduce the length of the jump or the basin?

Dentated sills

Chute blocks

Roller bucket

Baffle piers

Question 7 of 10

Question 8 of 10

8. A shaft spillway is located _______________________

on the side flanks of the main dam

inside the downstream reservoir

inside the body of a gravity dam

inside the upstream reservoir

Question 8 of 10

Question 9 of 10

9. The spillway can be best built independently of the dam when there is _________________________

deep narrow gorge with gradual slopes

wide valley with moderate slopes

deep narrow gorge with steep slopes

wide gorge with a gradual slope

Question 9 of 10

Question 10 of 10

10. In Fellenius method for small values of angle of internal friction of soil, the critical arc passes ________________

through the toe of the slope

below the toe of the slope

above the toe of the slope

anywhere near the toe of the slope

Question 10 of 10