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.
| 201. |
The formula for discharge for two wells at distance B is given by ____________ |
| A. | \(q_1=q_2=\frac{2πkb(H-h)}{log_e \frac{R^2}{rB}} \) |
| B. | \(q_1=q_2=\frac{2πkb(H-h)B}{log_e \frac{r}{R}}\) |
| C. | \(q_1=q_2=\frac{2πkb(H-h)}{log_e \frac{RB}{r}}\) |
| D. | \(q_1=q_2=\frac{kb(H-h)}{log_e \frac{R}{rB}} \) |
| Answer» B. \(q_1=q_2=\frac{2πkb(H-h)B}{log_e \frac{r}{R}}\) | |
| 202. |
The formula for discharge for three wells forming an equilateral triangle at distance B on side is given by ____________ |
| A. | \(q_1=q_2=q_3= \frac{2πkb(H-h)}{log_e \frac{R^2}{rB}} \) |
| B. | \(q_1=q_2=q_3= \frac{2πkb(H-h)}{log_e \frac{R^3}{rB^2}}\) |
| C. | \(q_1=q_2=q_3= \frac{2πkb(H-h)}{log_e \frac{RB}{r}}\) |
| D. | \(q_1=q_2=q_3= \frac{kb(H-h)}{log_e \frac{R}{rB}}\) |
| Answer» C. \(q_1=q_2=q_3= \frac{2πkb(H-h)}{log_e \frac{RB}{r}}\) | |
| 203. |
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 m³/s |
| B. | 0.040 m³/s |
| C. | 0.036 m³/s |
| D. | 0.042 m³/s |
| Answer» D. 0.042 m³/s | |
| 204. |
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 | |
| 205. |
The value of specific yield depends upon the shape of the pores. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 206. |
Which of the following is depicted by Dupuit’s theory? |
| A. | The velocity of flow |
| B. | Co-efficient of transmissibility |
| C. | Radial flow of water |
| D. | Volume of aquifer |
| Answer» D. Volume of aquifer | |
| 207. |
In most of the confined aquifers, the value of storage coefficient ranges between __________ |
| A. | 0.05 to 0.0005 |
| B. | 0.5 to 0.005 |
| C. | 0.00005 to 0.005 |
| D. | 0 to 5 |
| Answer» D. 0 to 5 | |
| 208. |
The co-efficient of transmissibility (T) of an aquifer is given by which of the following equation? |
| A. | T=b k |
| B. | T=b/k |
| C. | T=(b k)2 |
| D. | T=k/b |
| Answer» B. T=b/k | |
| 209. |
According to Dupuit’s theory,the velocity of flow is proportional to__________ |
| A. | Sine of hydraulic gradient |
| B. | Tangent of hydraulic gradient |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» C. None of the mentioned | |
| 210. |
Dupuit’s theory states that, the Darcy’s law equation is not valid near_________ |
| A. | Well face |
| B. | Top Surface of well |
| C. | Sides of the well |
| D. | All of the mentioned |
| Answer» B. Top Surface of well | |
| 211. |
The coefficient of permeability by Packer for length in the range 10r > L ≥r test is given by ________ |
| A. | \(k=\frac{q}{2πh}log_{10} \frac{L}{r} \) |
| B. | \(k=\frac{q}{2πLh}log_{10} \frac{L}{r} \) |
| C. | \(k=\frac{q}{2Lh}log_{10} \frac{L}{r} \) |
| D. | \(k=\frac{q}{2πLh}sinh^{-1}\frac{L}{2r} \) |
| Answer» E. | |
| 212. |
The coefficient of permeability by Packer for length greater than ten times the radius test is given by ________ |
| A. | \(k=\frac{q}{2πh}log_{10} \frac{L}{r}\) |
| B. | \(k=\frac{v}{2πLh}log_{10} \frac{L}{r}\) |
| C. | \(k=\frac{q}{2Lh}log_{10} \frac{L}{r}\) |
| D. | \(k=\frac{q}{2πLh}log_{10} \frac{L}{r}\) |
| Answer» B. \(k=\frac{v}{2πLh}log_{10} \frac{L}{r}\) | |
| 213. |
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 | |
| 214. |
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 | |
| 215. |
The coefficient of transmissibility is defined as the rate of flow of water through a horizontal strip of unit width and full saturation height under unit hydraulic gradient. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |
| 216. |
If b is the aquifer thickness, the relationship between coefficient of transmissibility T and coefficient of permeability is ________ |
| A. | T=bk |
| B. | T=b/k |
| C. | T=b+k |
| D. | T=b-k |
| Answer» B. T=b/k | |
| 217. |
The drawdown, corresponding to a steady discharge, are observed at a number of wells in _______ |
| A. | pumping out test |
| B. | pumping in test |
| C. | constant head permeability test |
| D. | falling head permeability test |
| Answer» B. pumping in test | |
| 218. |
The formula for the pumping out test in an unconfined aquifer is given by _________ |
| A. | \(k=\frac{qπ}{1.36(H^2-h^2)}log_{10}\frac{R}{r} \) |
| B. | \(k=\frac{q}{1.36(H^2-h^2)}log_{10}\frac{R}{r} \) |
| C. | \(k=\frac{q}{π(H^2-h^2)}log_{10}\frac{R}{r} \) |
| D. | \(k=\frac{q}{1.36(H^2-h^2)} \) |
| Answer» C. \(k=\frac{q}{π(H^2-h^2)}log_{10}\frac{R}{r} \) | |
| 219. |
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 | |
| 220. |
The parabolic depression in the aquifer is called as __________ |
| A. | Cone of depression and Drawdown curve |
| B. | Parabolic curve |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Parabolic curve | |
| 221. |
Specific yield of unconfined aquifer indicates __________ |
| A. | Water capacity |
| B. | Volume of water |
| C. | Water retained |
| D. | All of the mentioned |
| Answer» B. Volume of water | |
| 222. |
Dupuit’s theory was later modified by _________ |
| A. | Thiem |
| B. | Darcy |
| C. | Alam Singh |
| D. | Louden |
| Answer» B. Darcy | |
| 223. |
Which of the following test is commonly adopted for determining soil permeability of soil formations? |
| A. | Pumping-in test and Pumping-out test |
| B. | Horizontal capillary test |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Horizontal capillary test | |
| 224. |
The value of specific yield SY, of an aquifer depends on ___________ |
| A. | Grain size |
| B. | Compaction of stratum |
| C. | Grain shape |
| D. | All of the mentioned |
| Answer» E. | |
| 225. |
The ratio of the inertia and viscous forces acting in any flow, ignoring other forces, is called |
| A. | Euler number |
| B. | Frode number |
| C. | Reynold number |
| D. | Weber number. |
| Answer» D. Weber number. | |
| 226. |
The upper surface of the weir over which water flows, is known as |
| A. | vein |
| B. | nappe |
| C. | sill |
| D. | none of these. |
| Answer» D. none of these. | |
| 227. |
For mountaneous regions having steep slope, wagons for carrying liquid are made with bottom |
| A. | parallel to the road surface |
| B. | parallel to the horizontal surface |
| C. | inclined upward while moving upwards |
| D. | inclined downward while moving downwards. |
| Answer» C. inclined upward while moving upwards | |
| 228. |
For a most economical rectangular channel, the hydraulic mean depth, is equal to |
| A. | the depth of flow |
| B. | half the depth of flow |
| C. | one-third depth of flow |
| D. | None of these. |
| Answer» C. one-third depth of flow | |
| 229. |
In two dimensional flow the components of velocity are given by u = ax ; v = by . The stream lines will be |
| A. | circular |
| B. | parabolic |
| C. | hyperbolic |
| D. | elliptical. |
| Answer» D. elliptical. | |
| 230. |
For solving network problems of pipes, necessary condition is |
| A. | continuity equation |
| B. | energy equation |
| C. | Darcy-Weisbach equation |
| D. | all the above. |
| Answer» E. | |
| 231. |
The acceleration f required to accelerate a rectangular tank containing water horizontally so that the slope of its free surface is 45°, is |
| A. | g /2 |
| B. | g |
| C. | 2 g |
| D. | 2.5 g |
| Answer» C. 2 g | |
| 232. |
Chezy's constant is suggested by |
| A. | Bazin |
| B. | Kutter |
| C. | Manning |
| D. | Powell. |
| Answer» B. Kutter | |
| 233. |
The discharg formula Q = C d 2 gH x A is used for rectangular |
| A. | small orifices only |
| B. | large orifices only |
| C. | small and large orifices only |
| D. | for all types of orifices. |
| Answer» C. small and large orifices only | |
| 234. |
For an irrotational flow, the equation is given by |
| A. | Cauchy-Riemann |
| B. | Reynold |
| C. | Laplaces |
| D. | Bernoulli. |
| Answer» D. Bernoulli. | |
| 235. |
The dimensions MLT -2 refers to |
| A. | specific weight |
| B. | force |
| C. | discharge |
| D. | none of these. |
| Answer» C. discharge | |
| 236. |
If v 1 and v 2 are the velocities of flow before and after sudden enlargement in a pipe, the head loss given by Carnot and Borda equation, is |
| A. | ( v 2 2 - v 1 2 )/2 g |
| B. | ( v 1 - v 2 ) 2 /2 g |
| C. | ( v 2 - v 1 ) 2 /2 g |
| D. | ( v 1 + v 2 ) 2 /2 g . |
| Answer» C. ( v 2 - v 1 ) 2 /2 g | |
| 237. |
The formula Q = m x L x 2 g x H 3/2 where was suggested by : |
| A. | Bazin |
| B. | Francis |
| C. | Cipolletti |
| D. | None of these. |
| Answer» B. Francis | |
| 238. |
The value of kinetic energy correction factor ( a ) for a laminar flow through a circular pipe, is |
| A. | 0.5 |
| B. | 1.0 |
| C. | l.5 |
| D. | 2.0 |
| Answer» E. | |
| 239. |
To ensure that water does not rise more than 100 cm above the crest, for a discharge of 5.00 m 3 /sec, the length of water will be |
| A. | 2.48 m |
| B. | 2.49 m |
| C. | 2.50 m |
| D. | 2.51 m. |
| Answer» C. 2.50 m | |
| 240. |
If H is the difference of liquid levels on two sides of an orifice (width b , depth d ), the discharge through the orifice will be |
| A. | C d bd 2 2 gH |
| B. | C d b 2 d 2 gH |
| C. | C d bd 2 gh |
| D. | C d bd .2 g H 1/2 . |
| Answer» D. C d bd .2 g H 1/2 . | |
| 241. |
For a most economical rectangular channel, the width of the channel must be |
| A. | equal to depth of flow |
| B. | twice the depth of flow |
| C. | half the depth of flow |
| D. | None of these. |
| Answer» C. half the depth of flow | |
| 242. |
In a two dimensional flow if the components of the velocity are u = ax ; v = by , the point where no motion occurs, is known as |
| A. | critical point |
| B. | neutral point |
| C. | stagnation point |
| D. | stationary point |
| Answer» D. stationary point | |
| 243. |
The intensity of pressure due to sudden closure of a valve of a pipe in which water flows with velocity v , is directly proportional to : |
| A. | square root of the bulk modulus of elasticity of water |
| B. | bulk modulus of elasticity of water |
| C. | specific weight of water |
| D. | none of these. |
| Answer» B. bulk modulus of elasticity of water | |
| 244. |
Flow net' can be drawn only if the flow is |
| A. | turbulent |
| B. | rotational |
| C. | distortion |
| D. | none of these. |
| Answer» D. none of these. | |
| 245. |
If the pressure at the inlet of a pipe is 90 kg/cm 2 and pressure drop over the pipe line is 10 kg/cm 2 , the efficiency of transmission, is |
| A. | 66.6% |
| B. | 77.7% |
| C. | 55.5% |
| D. | 88.8%. |
| Answer» E. | |
| 246. |
The velocity of flow at the critical depth ( h c ) is called critical velocity ( V c ) which is equal to |
| A. | V c = g x h c |
| B. | g x h c |
| C. | - |
| D. | None of these. |
| Answer» C. - | |
| 247. |
In an inclined position, a venturimeter records |
| A. | more reading |
| B. | less reading |
| C. | same reading |
| D. | none of these. |
| Answer» D. none of these. | |
| 248. |
The hydrostatic force acts through |
| A. | centre of pressure |
| B. | centre of top edge |
| C. | centre of bottom edge |
| D. | metacentre. |
| Answer» B. centre of top edge | |
| 249. |
The specific weight of water is 1000 kg/m 3 |
| A. | at normal pressure of 760 mm |
| B. | at 4°C temperature |
| C. | at mean sea level |
| D. | all the above. |
| Answer» E. | |
| 250. |
The equation for the viscosity, is suggested |
| A. | Bernoulli |
| B. | Newton |
| C. | Chezy |
| D. | Bezin |
| Answer» C. Chezy | |