MCQOPTIONS
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MCQOPTIONS
This section includes 12 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 relationship between the quantity of flow with respect to the hydraulic radius and the voids ratio is given by ________ |
| A. | (q= frac{ _w R_H^2}{ } frac{e}{1+e}iA ) |
| B. | (=C_S frac{ _w R_H^2}{ } frac{e}{1+e} ) |
| C. | (=C_S frac{ _w R_H^2}{ }iA ) |
| D. | (=C_S frac{ _w R_H^2}{ } frac{e}{1+e}iA ) |
| Answer» E. | |
| 2. |
The quantity of flow for circular tube with respect to the hydraulic radius is given by ________ |
| A. | (q= frac{1}{2} frac{ _w R_H^2}{ } ) |
| B. | (q= frac{1}{2} frac{ _w R_H^2}{ }ia ) |
| C. | (q= frac{1}{2} frac{ _w R_H^2}{ }i ) |
| D. | (q= frac{1}{2} frac{ _w R_H^2}{ }a ) |
| Answer» C. (q= frac{1}{2} frac{ _w R_H^2}{ }i ) | |
| 3. |
The hydraulic radius RH is related with the voids ratio as ________ |
| A. | R<sub>H</sub>=V<sub>s</sub>/eA<sub>s</sub> |
| B. | R<sub>H</sub>=eV<sub>s</sub>A<sub>s</sub> |
| C. | R<sub>H</sub>=e/A<sub>s</sub>V<sub>s</sub> |
| D. | R<sub>H</sub>=eV<sub>s</sub>/A<sub>s</sub> |
| Answer» E. | |
| 4. |
The hydraulic radius RH of circular tube is given by ________ |
| A. | R<sub>H</sub>=R/4 |
| B. | R<sub>H</sub>=R/6 |
| C. | R<sub>H</sub>=R/2 |
| D. | R<sub>H</sub>=R/12 |
| Answer» D. R<sub>H</sub>=R/12 | |
| 5. |
The hydraulic radius RH is the ratio of the area of the tube to its volume. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
The average velocity of the tube of area a is given by _________ |
| A. | (v_{av}= frac{i _w}{8 }a ) |
| B. | (v_{av}= frac{ frac{i _w}{8 }}{a} ) |
| C. | (v_{av}= frac{i _w}{2 }a ) |
| D. | (v_{av}= frac{ frac{i _w}{4 }}{a} ) |
| Answer» B. (v_{av}= frac{ frac{i _w}{8 }}{a} ) | |
| 7. |
The total quantity of water with respect to the hydraulic gradient flowing through the capillary tube is given by _________ |
| A. | ( q= frac{hi _w}{4 L} R^2 ) |
| B. | ( q= frac{h _w}{4 L} R^4/i ) |
| C. | ( q= frac{i _w}{8 } R^2 ) |
| D. | ( q= frac{i _w}{8 } R^4 ) |
| Answer» E. | |
| 8. |
The total quantity of water flowing through the capillary tube is given by _________ |
| A. | (q= frac{h _w}{4 L} R^2 ) |
| B. | (q= frac{h _w}{4 L} R^4 ) |
| C. | (q= frac{h _w}{8 L} R^2 ) |
| D. | (q= frac{h _w}{8 L} R^4 ) |
| Answer» E. | |
| 9. |
The quantity of water flowing in thin cylindrical sheet of thickness dr is ____________ |
| A. | (dq= frac{h _w}{4 L}(R^2-r^2)2 rdr ) |
| B. | (dq= frac{h _w}{4 L}(R^2-r^2)4 rdr ) |
| C. | (dq= frac{h _w}{4 L}(R^2-r^2)8 rdr ) |
| D. | (dq= frac{h _w}{4 L}(R^2-r^2)12 rdr ) |
| Answer» B. (dq= frac{h _w}{4 L}(R^2-r^2)4 rdr ) | |
| 10. |
The velocity of flow of water at the centre of tube is _______ when the head is 0.1m, =8.9*10-3 dynes-s/cm2, w=1 g/cm3, the length is 10m and the diameter is 20cm. |
| A. | 20 cm/s |
| B. | 22 cm/s |
| C. | 28 cm/s |
| D. | 30 cm/s |
| Answer» D. 30 cm/s | |
| 11. |
In Poiseuille s law of flow, the variation of the velocity is given by _______ |
| A. | v = ( frac{h _w}{4 L}(r^2-R^2) ) |
| B. | v = ( frac{h _w}{14 L}(R^2-r^2) ) |
| C. | v = ( frac{h _w}{4 L}(R^2-r^2) ) |
| D. | v = ( frac{h _w}{8 L}(R^2-r^2) ) |
| Answer» D. v = ( frac{h _w}{8 L}(R^2-r^2) ) | |
| 12. |
For flow of water in tube, the velocity at surface is ___________ |
| A. | zero |
| B. | equal to velocity at 1/3 of diameter |
| C. | equal to velocity at 1/2 of diameter |
| D. | equal to velocity at centre |
| Answer» B. equal to velocity at 1/3 of diameter | |