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. | \(q=\frac{γ_w R_H^2}{η}\frac{e}{1+e}iA\) |
| B. | \(=C_S\frac{γ_w R_H^2}{η}\frac{e}{1+e}\) |
| C. | \(=C_S\frac{γ_w R_H^2}{η}iA\) |
| D. | \(=C_S\frac{γ_w R_H^2}{η}\frac{e}{1+e}iA\) |
| Answer» E. | |
| 2. |
The quantity of flow for circular tube with respect to the hydraulic radius is given by ________ |
| A. | \(q=\frac{1}{2}\frac{γ_w R_H^2}{η} \) |
| B. | \(q=\frac{1}{2}\frac{γ_w R_H^2}{η}ia\) |
| C. | \(q=\frac{1}{2}\frac{γ_w R_H^2}{η}i\) |
| D. | \(q=\frac{1}{2}\frac{γ_w R_H^2}{η}a \) |
| Answer» C. \(q=\frac{1}{2}\frac{γ_w R_H^2}{η}i\) | |
| 3. |
The hydraulic radius RH is related with the voids ratio as ________ |
| A. | RH=Vs/eAs |
| B. | RH=eVsAs |
| C. | RH=e/AsVs |
| D. | RH=eVs/As |
| Answer» E. | |
| 4. |
The hydraulic radius RH of circular tube is given by ________ |
| A. | RH=R/4 |
| B. | RH=R/6 |
| C. | RH=R/2 |
| D. | RH=R/12 |
| Answer» D. RH=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. | \(v_{av}=\frac{iγ_w}{8ηπ}a \) |
| B. | \(v_{av}=\frac{\frac{iγ_w}{8ηπ}}{a}\) |
| C. | \(v_{av}=\frac{iγ_w}{2ηπ}a\) |
| D. | \(v_{av}=\frac{\frac{iγ_w}{4ηπ}}{a}\) |
| Answer» B. \(v_{av}=\frac{\frac{iγ_w}{8ηπ}}{a}\) | |
| 7. |
The total quantity of water with respect to the hydraulic gradient flowing through the capillary tube is given by _________ |
| A. | \( q=\frac{hiγ_w}{4ηL} R^2 \) |
| B. | \( q=\frac{hγ_w}{4ηL} R^4/i\) |
| C. | \( q=\frac{iγ_w}{8η} π R^2\) |
| D. | \( q=\frac{iγ_w}{8η} πR^4\) |
| Answer» E. | |
| 8. |
The total quantity of water flowing through the capillary tube is given by _________ |
| A. | \(q=\frac{hγ_w}{4ηL} R^2 \) |
| B. | \(q=\frac{hγ_w}{4ηL} R^4\) |
| C. | \(q=\frac{hγ_w}{8ηL} R^2\) |
| D. | \(q=\frac{hγ_w}{8ηL} πR^4\) |
| Answer» E. | |
| 9. |
The quantity of water flowing in thin cylindrical sheet of thickness dr is ____________ |
| A. | \(dq=\frac{hγ_w}{4ηL}(R^2-r^2)2πrdr\) |
| B. | \(dq=\frac{hγ_w}{4ηL}(R^2-r^2)4πrdr\) |
| C. | \(dq=\frac{hγ_w}{4ηL}(R^2-r^2)8πrdr\) |
| D. | \(dq=\frac{hγ_w}{4ηL}(R^2-r^2)12πrdr\) |
| Answer» B. \(dq=\frac{hγ_w}{4ηL}(R^2-r^2)4πrdr\) | |
| 10. |
The velocity of flow of water at the centre of tube is _______ when the head is 0.1m, η=8.9*10-3 dynes-s/cm2, γw=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 = \(\frac{hγ_w}{4ηL}(r^2-R^2)\) |
| B. | v = \(\frac{hγ_w}{14ηL}(R^2-r^2)\) |
| C. | v = \(\frac{hγ_w}{4ηL}(R^2-r^2)\) |
| D. | v = \(\frac{hγ_w}{8ηL}(R^2-r^2)\) |
| Answer» D. v = \(\frac{hγ_w}{8ηL}(R^2-r^2)\) | |
| 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 | |