MCQOPTIONS
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MCQOPTIONS
This section includes 279 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
The Bernoulli’s equation is |
| A. | P1 = P2 = P3 |
| B. | V1 A1 = V2 + A2 |
| C. | E = Z + (V2/ 2g)+ (p /w) |
| D. | Z1 + P1/w + V12/2g = Z2 + P2/w + V22 /2g |
| Answer» E. | |
| 152. |
From following which is correct. |
| A. | Absolute Pressure = Atmospheric Pressure + Vacuum Pressure |
| B. | Absolute Pressure = Atmospheric Pressure - Vacuum Pressure |
| C. | Absolute Pressure = Atmospheric Pressure * Vacuum Pressure |
| D. | Absolute Pressure = Atmospheric Pressure / Vacuum Pressure |
| Answer» C. Absolute Pressure = Atmospheric Pressure * Vacuum Pressure | |
| 153. |
if H < 5 D, type of orifice is |
| A. | large orifice |
| B. | small orifice |
| C. | fully submerged orifice |
| D. | partially submerged orifice |
| Answer» B. small orifice | |
| 154. |
When body or matter flows from one point to another point on application of shear force, it is called |
| A. | Fluid |
| B. | liquid |
| C. | gas |
| D. | Both (b) & (c) |
| Answer» B. liquid | |
| 155. |
A real fluid, in which the shear stress is directly proportional to the rate of shear strain (orvelocity gradient), is known as ___________. |
| A. | Ideal fluid |
| B. | Real fluid |
| C. | Newtonian fluid |
| D. | Non-Newtonian fluid |
| Answer» D. Non-Newtonian fluid | |
| 156. |
Pitot tube is consists of a glass tube bent through |
| A. | 30° |
| B. | 45° |
| C. | 60° |
| D. | 90° |
| Answer» E. | |
| 157. |
the ratio of cross sectional area to the wetted perimeter is called |
| A. | hydraulic mean depth |
| B. | hydraulic depth |
| C. | mean depth |
| D. | none of this |
| Answer» B. hydraulic depth | |
| 158. |
Such a velocity at which the whole dye thread is diffused, is known as |
| A. | lower critical velocity. |
| B. | upper critical velocity |
| C. | critical velocity |
| D. | None of the above |
| Answer» C. critical velocity | |
| 159. |
A rectangular plate of 2 m x 3 m height is immersed in water vertically with top edge parallel to and at depth of 3 m below free surface. Calculate total water pressure. |
| A. | 264.87 kN |
| B. | 264.87 N |
| C. | 176.58 N |
| D. | 176.58 kN |
| Answer» B. 264.87 N | |
| 160. |
A 12 m long weir is subdivided by four intermediate vertical posts each 0.6 m wide. If the weir is discharging under a head of 0.5 m, calculate discharge using Francis formula. |
| A. | 5.895 m3/sec |
| B. | 5.895 m3/hr |
| C. | 5.895 lit/sec |
| D. | 5.895 lit/ hr |
| Answer» B. 5.895 m3/hr | |
| 161. |
An average value of Cv is about |
| A. | 0.62 |
| B. | 0.64 |
| C. | 0.75 |
| D. | 0.95 to 0.99 |
| Answer» E. | |
| 162. |
A water tank contains 1.5 m deep water. Find pressure exerted by water per metre length ofthe tank. |
| A. | 11.04 N/m |
| B. | 11.04 kN/m |
| C. | 11.04 kN/m2 |
| D. | 11.04 N/m2 |
| Answer» C. 11.04 kN/m2 | |
| 163. |
A number of filteration wells are connected through porous pipes to a sump well known as |
| A. | Open well |
| B. | Spring |
| C. | Ranney well |
| D. | Jack well |
| Answer» E. | |
| 164. |
A geological formation which does not yield water freely to the well is called as |
| A. | Aquifer |
| B. | Aquifuse |
| C. | Aquiclude |
| D. | Aquitard |
| E. | Pearched aquifer |
| Answer» E. Pearched aquifer | |
| 165. |
Granite rock, which is negligibly porous and highly impermeable and hence neither contains nor yields ground water is an example of |
| A. | Aquifer |
| B. | Aquifuse |
| C. | Aquiclude |
| D. | Aquitard |
| E. | Pearched aquifer |
| Answer» C. Aquiclude | |
| 166. |
____ is the geological formation that does not yield water freely to well due to its lesser permeability. |
| A. | Aquatic permeability |
| B. | Aquifer |
| C. | Aquitard |
| D. | Aquiclude |
| Answer» D. Aquiclude | |
| 167. |
If Sy = specific yield and Sr = specific retention, then |
| A. | Sy + Sr = 0.50 |
| B. | Sy + Sr = porosity |
| C. | Sy + Sr = 1.0 |
| D. | Sy + Sr = permeability |
| Answer» C. Sy + Sr = 1.0 | |
| 168. |
Dupuit’s assumptions are valid for |
| A. | artesian aquifer |
| B. | confined aquifer |
| C. | leaky aquifer |
| D. | unconfined aquifer |
| Answer» E. | |
| 169. |
If it is possible for water to go through soil formation and because of which it gives insignificant yield, then the soil formation is termed as_____ |
| A. | aquifer |
| B. | aquifuge |
| C. | aquiclude |
| D. | aquitard |
| Answer» E. | |
| 170. |
A tubewell of 30 cm diameter penetrates fully into an artesian aquifer. The strainer length is 15 m. The yield from the well under a drawdown of 3 m through the aquifer consisting of sand of effective size of 0.2 mm and coefficient of permeability of 50 m / day, with radius of drawdown of 150 m, is nearly |
| A. | 240 l / s |
| B. | 120 l / s |
| C. | 24 l / s |
| D. | 12 l / s |
| Answer» D. 12 l / s | |
| 171. |
If within a zone of saturation, an impervious deposit below a pervious deposit is found to support a body of saturated material, then this body of saturated material is known as_______ |
| A. | Flowing well |
| B. | Aquiclude |
| C. | Artesian aquifer |
| D. | Perched aquifer |
| Answer» E. | |
| 172. |
Artesian well is a well which |
| A. | does not require a pump to bring water to the surface |
| B. | requires a pump to bring water to the surface |
| C. | has the highest specific yield of water |
| D. | has the highest specific retention of water |
| Answer» D. has the highest specific retention of water | |
| 173. |
A well caisson is a foundation facilating structure sunk in the ground or water; which is: |
| A. | Open at top as well as at bottom |
| B. | Open at top and closed at bottom |
| C. | Open at bottom and closed at top |
| D. | Closed at top as well as at bottom |
| Answer» B. Open at top and closed at bottom | |
| 174. |
A pollutant entered into a confined aquifer of 5 m thick and porosity 25%. If the seepage discharge through the aquifer is 0.25 m2 / s, the travel time of pollutant for 100 m in the aquifer will be (in seconds) |
| A. | 20 |
| B. | 400 |
| C. | 500 |
| D. | 2000 |
| Answer» D. 2000 | |
| 175. |
In a field test, a time of 5 h is required for a tracer to travel through an aquifer (porosity = 20%) from one well to another. If observation wells are located 50 m apart and the difference in the water levels is found to be 0.5 m, the discharge velocity (cm/s) is |
| A. | 10 |
| B. | 0.055 |
| C. | 2.5 |
| D. | 0.55 |
| E. | 0.25 |
| Answer» C. 2.5 | |
| 176. |
In context with Water Supply, working head is generally takes as _______ of the critical depression head. |
| A. | three times |
| B. | one - third |
| C. | two - times |
| D. | half |
| Answer» C. two - times | |
| 177. |
In a uniform semi-infinite aquifer, the dependable discharge of a lone circular open well is increased most easily by |
| A. | increasing the diameter |
| B. | making it into one with a square kerb |
| C. | deepening the well |
| D. | providing coarser screening filter |
| Answer» D. providing coarser screening filter | |
| 178. |
In coarse gravels, specific retention is: _____. |
| A. | More |
| B. | Less |
| C. | Moderate |
| D. | More or less |
| Answer» C. Moderate | |
| 179. |
A ground water basin consists of 1 km2 area of plains. The maximum groundwater fluctuation has been observed to be 1.0 m. What is the available ground water storage if the specific yield of the basin is 10%? |
| A. | 10000 m3 |
| B. | 100000 m3 |
| C. | 1000000 m3 |
| D. | 10000000 m3 |
| Answer» C. 1000000 m3 | |
| 180. |
Isopiestic lines are the contours |
| A. | drawn to represent water table |
| B. | drawn to represent piezometric heads |
| C. | drawn to represent piezometric surface |
| D. | drawn to represent points of equal rainfall |
| Answer» D. drawn to represent points of equal rainfall | |
| 181. |
Dupit’s assumptions are valid for |
| A. | artesian aquifer |
| B. | confined aquifer |
| C. | leaky aquifer |
| D. | unconfined aquifer |
| Answer» E. | |
| 182. |
Which of the following flow is less efficient than radial flow? |
| A. | Bottom flow |
| B. | Spherical flow |
| C. | Turbulent flow |
| D. | Linear flow |
| Answer» C. Turbulent flow | |
| 183. |
In a tube well of 20cm diameter in a soil with coefficient of permeability of 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 m³/s |
| B. | 0.040 m³/s |
| C. | 0.036 m³/s |
| D. | 0.042 m³/s |
| Answer» D. 0.042 m³/s | |
| 184. |
The discharge for drawdown of well is given by _______ |
| A. | \(q=\frac{2πkb(H-h)}{log_{10}\frac{R}{r}}\) |
| B. | \(q=\frac{2πkb(H-h)}{log_e\frac{r}{R}}\) |
| C. | \(q=\frac{2πkb(H-h)}{log_e\frac{R}{r}}\) |
| D. | \(q=\frac{kb(H-h)}{log_e\frac{R}{r}}\) |
| Answer» D. \(q=\frac{kb(H-h)}{log_e\frac{R}{r}}\) | |
| 185. |
Which of the following well, does not penetrate to the full depth of an aquifer? |
| A. | Fully penetrating artesian gravity wall |
| B. | Partially penetrating artesian wall |
| C. | Partially penetrating artesian gravity wall |
| D. | All of the mentioned |
| Answer» C. Partially penetrating artesian gravity wall | |
| 186. |
For fine-grained soil,the value of K/A as specified by Marrio is _________ |
| A. | 1.00 |
| B. | 0.50 |
| C. | 0.25 |
| D. | 2.00 |
| Answer» D. 2.00 | |
| 187. |
The specific yield Sγ is given by _______ |
| A. | (Vwy+V)*100 |
| B. | (Vwy-V)*100 |
| C. | (Vwy/V)*100 |
| D. | (Vwy*V)*100 |
| Answer» D. (Vwy*V)*100 | |
| 188. |
When two wells, situated near each other is discharged,the total discharge will __________ |
| A. | Increases |
| B. | Decreases |
| C. | Remains the same |
| D. | None of the mentioned |
| Answer» C. Remains the same | |
| 189. |
In the storage coefficient, the unit change in the component of the head is measured in _________ to the surface. |
| A. | normal |
| B. | tangential |
| C. | radial |
| D. | inclined at 30° |
| Answer» B. tangential | |
| 190. |
The pumping-in test was devised by _________ |
| A. | U.S. Bureau of soil and PRA |
| B. | U.S. Bureau of reclamation |
| C. | Indian standard of Bureau |
| D. | None of the mentioned |
| Answer» C. Indian standard of Bureau | |
| 191. |
The specific retention SR is given by _______ |
| A. | (VwR+V)*100 |
| B. | (VwR-V)*100 |
| C. | (VwR/V)*100 |
| D. | (VwR*V)*100 |
| Answer» D. (VwR*V)*100 | |
| 192. |
The discharge of an open well can be determined by, which of the following method? |
| A. | Constant head test |
| B. | Falling head test |
| C. | Recuperation test |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 193. |
The type of hydraulics of flows towards open well is __________ |
| A. | Radial flow |
| B. | Bottom flow |
| C. | Adjacent flow |
| D. | All of the mentioned |
| Answer» B. Bottom flow | |
| 194. |
In Recuperation test, the expression (K/A ) is known as ___________ |
| A. | Specific yield and Specific capacity |
| B. | Coefficient of permeability |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Coefficient of permeability | |
| 195. |
Volume of water dv entering the well, when the head recuperates by dh is ___________ |
| A. | dV=A/dh |
| B. | dV=A.dh |
| C. | dV=Khdt |
| D. | dV=K.A |
| Answer» C. dV=Khdt | |
| 196. |
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 m³/s |
| B. | 0.040 m³/s |
| C. | 0.036 m³/s |
| D. | 0.042 m³/s |
| Answer» D. 0.042 m³/s | |
| 197. |
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. \(k=\frac{5.5rh}{q} \) | |
| 198. |
An open well has relatively larger diameter at __________ |
| A. | Base |
| B. | Middle |
| C. | Top |
| D. | Near the bottom |
| Answer» C. Top | |
| 199. |
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 | |
| 200. |
The relation between porosity n, specific retention SR, specific yield Sγ is __________ |
| A. | n= SR-Sγ |
| B. | n= SR+Sγ |
| C. | n= SR*Sγ |
| D. | n= SR/Sγ |
| Answer» C. n= SR*Sγ | |