Irrigation Engineering Mock Test 8

10%

Question 1 of 10

1. When the height of the dam is in between 7.5 to 15, the Strange’s recommended value for maximum freeboard of low earth dams is ______________

1.5 to 1.8

2.1

1.85

1.2 to 1.5

Question 1 of 10

Question 2 of 10

2. What is the average value of acceleration that is sufficient for high dams in seismic zones?

0.15g (where g is the acceleration due to gravity)

0.3gs

0.05g to 0.1g

0.1g to 0.15g

Question 2 of 10

Question 3 of 10

3. A sequent peak algorithm is a plot between __________________

Accumulated flow v/s time

(Cumulative Inflow – Cumulative Outflow) v/s time

Discharge v/s time

Mass outflow v/s time

Question 3 of 10

Question 4 of 10

4. Which of the following dam is situated in the seismologically inactive zone in Peninsular India?

Hirakud dam

Tehri dam

Koyna dam

Idukki dam

Question 4 of 10

Question 5 of 10

5. A low gravity dam of elementary profile made up of concrete of relative density 2.57 and safe allowable stress of foundation material 4.2 MPa. What is the maximum height of the dam without considering the uplift force?

217 m

120 m

279 m

325 m

Question 5 of 10

Question 6 of 10

6. The major principal stress at the toe of a gravity dam under full reservoir condition neglecting the tailwater effect is given by ____________________

P_v

P_v sinQ²

P_v tanQ²

P_v secQ²

Question 6 of 10

Question 7 of 10

7. Which of the following statement is correct with reference to earthen dams?

These dams are very costly as compared to other types

Gravity dams are less susceptible to failure as compared to rigid dams

Highly skilled labor is generally not required

These dams are suitable for construction on almost every type of foundation

Question 7 of 10

Question 8 of 10

8. For full reservoir condition in a gravity dam, the critical combination of vertical and horizontal earthquake accelerations to be considered for checking the stability is ________________________

vertically upward and horizontally upstream

vertically upward and horizontally downstream

vertically downward and horizontally downstream

vertically downward and horizontally upstream

Question 8 of 10

Question 9 of 10

9. The foundation pressure used in the pressure grouting is equal to _________________

3.0 D N/cm²

2.0 D N/cm²

5.0 D N/cm²

2.5 D N/cm²

Question 9 of 10

Question 10 of 10

10. Which of the following earth dam is suitable only on impervious foundation?

Non-homogenous type

Zoned embankment type

Homogenous embankment type

Diaphragm type

Question 10 of 10