MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Soil Mechanics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The coefficient of permeability by Packer for length in the range 10r > L r test is given by ________ |
| A. | (k= frac{q}{2 h}log_{10} frac{L}{r} ) |
| B. | (k= frac{q}{2 Lh}log_{10} frac{L}{r} ) |
| C. | (k= frac{q}{2Lh}log_{10} frac{L}{r} ) |
| D. | (k= frac{q}{2 Lh}sinh^{-1} frac{L}{2r} ) |
| Answer» E. | |
| 2. |
The coefficient of permeability by Packer for length greater than ten times the radius test is given by ________ |
| A. | (k= frac{q}{2 h}log_{10} frac{L}{r} ) |
| B. | (k= frac{v}{2 Lh}log_{10} frac{L}{r} ) |
| C. | (k= frac{q}{2Lh}log_{10} frac{L}{r} ) |
| D. | (k= frac{q}{2 Lh}log_{10} frac{L}{r} ) |
| Answer» B. (k= frac{v}{2 Lh}log_{10} frac{L}{r} ) | |
| 3. |
The formula for the open-end test is given by _________ |
| A. | (k= frac{q}{5.5rh} ) |
| B. | (k= frac{5.5rh}{q} ) |
| C. | (k= frac{q}{5rh} ) |
| D. | (k= frac{q}{0.5rh} ) |
| Answer» B. (k= frac{5.5rh}{q} ) | |
| 4. |
The U.S. Bureau of Reclamation (Earth manual 1960) has devised two types of pumping-in tests _________ |
| A. | open-end test and packer test |
| B. | permeability test and radio test |
| C. | dupin test and influence test |
| D. | falling head and constant head permeability test |
| Answer» B. permeability test and radio test | |
| 5. |
In the field determination, pumping must continue at a ________ |
| A. | uniform rate for sufficient time to approach steady state |
| B. | non- uniform rate for sufficient time to approach steady state |
| C. | uniform rate until just before time to approach steady state |
| D. | non-uniform rate until just before time to approach steady state |
| Answer» B. non- uniform rate for sufficient time to approach steady state | |
| 6. |
The permeability of the aquifer is ________ if the drawdown is 4m, discharge is 40litres/sec, thickness of confined aquifer is 30m and the radius of the well is 0.1m. The radius of influence is taken as 245m. |
| A. | 36 m/day |
| B. | 30 m/day |
| C. | 26 m/day |
| D. | 20 m/day |
| Answer» B. 30 m/day | |
| 7. |
The formula for the pumping out test in an unconfined aquifer is given by _________ |
| A. | (k= frac{q }{1.36(H^2-h^2)}log_{10} frac{R}{r} ) |
| B. | (k= frac{q}{1.36(H^2-h^2)}log_{10} frac{R}{r} ) |
| C. | (k= frac{q}{ (H^2-h^2)}log_{10} frac{R}{r} ) |
| D. | (k= frac{q}{1.36(H^2-h^2)} ) |
| Answer» C. (k= frac{q}{ (H^2-h^2)}log_{10} frac{R}{r} ) | |