MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Geotechnical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In a artesian well, when water level falls below the top of confined aquifer, then this type of well is known as ______ |
| A. | well in unconfined aquifer |
| B. | gravity well |
| C. | combined artesian gravity well |
| D. | artesian well |
| Answer» D. artesian well | |
| 2. |
Three tube wells of 20cm diameter each forming an equilateral triangle at distance 100m on side. The coefficient of permeability is 4.15 * 10-4 m/s, drawdown is 4m and aquifer is 30m thick. If radius of influence is 245m, what is the discharge in each well? |
| A. | 0.033 m<sup>3</sup>/s |
| B. | 0.040 m<sup>3</sup>/s |
| C. | 0.036 m<sup>3</sup>/s |
| D. | 0.042 m<sup>3</sup>/s |
| Answer» D. 0.042 m<sup>3</sup>/s | |
| 3. |
In a tube well of 20cm diameter in a soil with coefficient of permeability of 4.15 * 10-4m/s, drawdown is 4m and aquifer is 30m thick. If radius of influence is 245m, what is the discharge in each well? |
| A. | 0.033 m<sup>3</sup>/s |
| B. | 0.040 m<sup>3</sup>/s |
| C. | 0.036 m<sup>3</sup>/s |
| D. | 0.042 m<sup>3</sup>/s |
| Answer» D. 0.042 m<sup>3</sup>/s | |
| 4. |
Two tube wells of 20cm diameter each are 100m apart. The coefficient of permeability is 4.15 * 10-4 m/s, drawdown is 4m and aquifer is 30m thick. If radius of influence is 245m, what is the discharge in each well? |
| A. | 0.033 m<sup>3</sup>/s |
| B. | 0.040 m<sup>3</sup>/s |
| C. | 0.036 m<sup>3</sup>/s |
| D. | 0.042 m<sup>3</sup>/s |
| Answer» D. 0.042 m<sup>3</sup>/s | |
| 5. |
The formula for discharge for three wells forming an equilateral triangle at distance B on side is given by ____________ |
| A. | (q_1=q_2=q_3= frac{2 kb(H-h)}{log_e frac{R^2}{rB}} ) |
| B. | (q_1=q_2=q_3= frac{2 kb(H-h)}{log_e frac{R^3}{rB^2}} ) |
| C. | (q_1=q_2=q_3= frac{2 kb(H-h)}{log_e frac{RB}{r}} ) |
| D. | (q_1=q_2=q_3= frac{kb(H-h)}{log_e frac{R}{rB}} ) |
| Answer» C. (q_1=q_2=q_3= frac{2 kb(H-h)}{log_e frac{RB}{r}} ) | |
| 6. |
The formula for discharge for two wells at distance B is given by ____________ |
| A. | (q_1=q_2= frac{2 kb(H-h)}{log_e frac{R^2}{rB}} ) |
| B. | (q_1=q_2= frac{2 kb(H-h)B}{log_e frac{r}{R}} ) |
| C. | (q_1=q_2= frac{2 kb(H-h)}{log_e frac{RB}{r}} ) |
| D. | (q_1=q_2= frac{kb(H-h)}{log_e frac{R}{rB}} ) |
| Answer» B. (q_1=q_2= frac{2 kb(H-h)B}{log_e frac{r}{R}} ) | |
| 7. |
The discharge for drawdown of well is given by _______ |
| A. | (q= frac{2 kb(H-h)}{log_{10} frac{R}{r}} ) |
| B. | (q= frac{2 kb(H-h)}{log_e frac{r}{R}} ) |
| C. | (q= frac{2 kb(H-h)}{log_e frac{R}{r}} ) |
| D. | (q= frac{kb(H-h)}{log_e frac{R}{r}} ) |
| Answer» D. (q= frac{kb(H-h)}{log_e frac{R}{r}} ) | |
| 8. |
When two wells are situated near each other, the discharge in individual well is ________ |
| A. | increased |
| B. | decreased |
| C. | not effected |
| D. | remains same with respect to each other |
| Answer» C. not effected | |