MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Irrigation Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is Von Karman s formula for hydrodynamic force (Pe)? |
| A. | P<sub>e</sub> = 0.726 p<sub>e</sub> H |
| B. | P<sub>e</sub> = 0.424 p<sub>e</sub> H |
| C. | P<sub>e</sub> = 0.555 p<sub>e</sub> H |
| D. | P<sub>e</sub> = 0.555.K<sub>h</sub>. Y<sub>w</sub> H<sup>2</sup> |
| Answer» E. | |
| 2. |
What is the average value of acceleration that is sufficient for high dams in seismic zones? |
| A. | 0.1g to 0.15g |
| B. | 0.05g to 0.1g |
| C. | 0.3gs |
| D. | 0.15g (where g is the acceleration due to gravity) |
| Answer» B. 0.05g to 0.1g | |
| 3. |
The upward acceleration of dam due to seismic activity will ________________________ |
| A. | increase the base pressure |
| B. | decrease the base pressure |
| C. | not affect the effective weight of the dam |
| D. | increase the horizontal dynamic force |
| Answer» B. decrease the base pressure | |
| 4. |
Calculate the value of free-board that should be provided for a reservoir having a wind velocity of 92 km/h and it extends up to 18 km upstream. |
| A. | 1.2 m |
| B. | 1.6 m |
| C. | 2.25 m |
| D. | 2.5 m |
| Answer» D. 2.5 m | |
| 5. |
What is the value of horizontal destabilizing force caused by the formation of waves in a storage reservoir having a fetch of 52 km due to high wind of 172 km/h? |
| A. | 30 KN |
| B. | 60 KN |
| C. | 130 KN |
| D. | 180 KN |
| Answer» E. | |
| 6. |
In a concrete gravity dam with a vertical upstream face the stabilising force is provided by the ___________________ |
| A. | weight of the dam |
| B. | the water supported against the upstream slope |
| C. | uplift pressure |
| D. | water pressure at the tail end |
| Answer» B. the water supported against the upstream slope | |
| 7. |
A gravity dam is subjected to hydrodynamic pressure caused by __________ |
| A. | the rising waves of the reservoir when a flood wave enters into it |
| B. | the rising waves in the reservoir due to high winds |
| C. | the increase in water pressure momentarily caused by the horizontal earthquake acting towards the reservoir |
| D. | the increase in water pressure momentarily caused by the horizontal earthquake acting towards the dam |
| Answer» D. the increase in water pressure momentarily caused by the horizontal earthquake acting towards the dam | |
| 8. |
The vertical downward earthquake acceleration av = 0.1g acting on a gravity dam will ________________________ |
| A. | increase the resisting weight of the dam by 10% |
| B. | decrease the resisting weight of the dam by 10% |
| C. | increase the uplift by 10% |
| D. | decrease the uplift by 10% |
| Answer» C. increase the uplift by 10% | |
| 9. |
The horizontal component of an earthquake wave producing instability in a dam is the one which acts __________________ |
| A. | towards the reservoir |
| B. | towards the dam |
| C. | away from the reservoir |
| D. | away from the dam |
| Answer» B. towards the dam | |
| 10. |
The vertical component of the earthquake wave which produces adverse effects on the stability of a dam when is acting in ____________________ |
| A. | upward direction |
| B. | downward direction |
| C. | both upward and downward direction |
| D. | any direction |
| Answer» C. both upward and downward direction | |