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.
| 251. |
Piezometers are used to measure |
| A. | pressure in water channels, pipes etc. |
| B. | difference in pressure at two points |
| C. | atmospheric pressure |
| D. | very low pressure. |
| Answer» E. | |
| 252. |
If total head available at the inlet of pipe and f 1 is the loss of head due to friction in the pipe, the maximum efficiency of transmission of power (? max ) is |
| A. | 1/2 |
| B. | 2/3 |
| C. | 3/4 |
| D. | 4/5 |
| Answer» C. 3/4 | |
| 253. |
In Chezy's formula V = C mi |
| A. | V is the mean velocity of flow |
| B. | m is the hydraulic mean depth |
| C. | i is the loss of head per unit length of pipe |
| D. | All the above. |
| Answer» E. | |
| 254. |
A fluid particle may possess the displacement of |
| A. | translation |
| B. | rotation |
| C. | distortion |
| D. | all the above. |
| Answer» E. | |
| 255. |
The rise of the liquid along the walls of a revolving cylinder above the initial level, is |
| A. | greater than the depression of the liquid at the axis of rotation |
| B. | lesser than the depression of the liquid at the axis of rotation |
| C. | the same as the depression of the liquid at the axis of rotation |
| D. | none of these. |
| Answer» D. none of these. | |
| 256. |
Atmospheric pressure varies with |
| A. | altitude |
| B. | temperature |
| C. | weather conditions |
| D. | all of the above. |
| Answer» E. | |
| 257. |
Fluids change the volume under external presssure due to |
| A. | plasticity |
| B. | viscosity |
| C. | compressibility |
| D. | none of these. |
| Answer» D. none of these. | |
| 258. |
If velocities of fluid particles vary from point to point in magnitude and direction, as well as from instant to instant, the flow is said to be |
| A. | laminar |
| B. | turbulent flow |
| C. | uniform flow |
| D. | non-uniform flow. |
| Answer» C. uniform flow | |
| 259. |
If C v , C c , C d and C r are the hydraulic coefficients of an orifice, then |
| A. | C d = C c . C v |
| B. | C r = 1 + C v 2 / C d |
| C. | C v = C c + C d |
| D. | C c = C v / C d |
| Answer» B. C r = 1 + C v 2 / C d | |
| 260. |
For exerting a pressure of 4.8 kg/cm 2 , the depth of oil (specific gravity 0.8), should be |
| A. | 40 cm |
| B. | 41 cm |
| C. | 56 cm |
| D. | 60 cm |
| Answer» E. | |
| 261. |
A closed cylindrical vessel of 100 cm diameter and 200 cm high is completely filled with a liquid (sp. weight 1600 kg/m 3 ) when rotated about its vertical axis at 100 r.p.m. The total pressure on its lid, is |
| A. | 459 kg |
| B. | 549 kg |
| C. | 945 kg |
| D. | 954 kg |
| Answer» E. | |
| 262. |
A cylinder 3 m in diameter and 4 m long retains water one side as shown in the below figure. If the weight of the cylinder is 2000 kgf, the vertical reaction at A is |
| A. | 14,137 kgf |
| B. | 5,863 kgf |
| C. | 20,000 kgf |
| D. | 18,000 kgf. |
| Answer» C. 20,000 kgf | |
| 263. |
In fluids, steady flow occurs when |
| A. | conditions of flow change steadily with time |
| B. | conditions of flow do not change with time at a point |
| C. | conditions of flow remain the same at adjacent point |
| D. | velocity vector remains constant at a point. |
| Answer» C. conditions of flow remain the same at adjacent point | |
| 264. |
In a centrifugual pump casing, the flow of water leaving the impeller, is |
| A. | rectilinear flow |
| B. | radial flow |
| C. | free vortex motion |
| D. | forced vertex. |
| Answer» D. forced vertex. | |
| 265. |
For most economical rectangular section of a channel, the depth is kept |
| A. | one-fourth of the width |
| B. | three times the hydraulic radius |
| C. | half the width |
| D. | hydraulic mean depth |
| Answer» D. hydraulic mean depth | |
| 266. |
Barometres are used to measure |
| A. | pressure in water channels, pipes etc. |
| B. | difference in pressure at two points |
| C. | atmospheric pressure |
| D. | very low pressure |
| Answer» D. very low pressure | |
| 267. |
When water flows over a rectangular suppressed weir, the negative pressure created beneath the nappe |
| A. | increases the discharge |
| B. | decreases the discharge |
| C. | does not effect the discharge |
| D. | none of these. |
| Answer» B. decreases the discharge | |
| 268. |
Kinematic viscosity of liquids by equation is determined by : |
| A. | Redwood viscometer |
| B. | Engler viscometer |
| C. | Saybolt universal viscometer |
| D. | None of these. |
| Answer» D. None of these. | |
| 269. |
For critical depth of flow of water in open channels, f c the specific energy must be : |
| A. | minimum |
| B. | maximum |
| C. | average of maximum and minimum |
| D. | None of these. |
| Answer» B. maximum | |
| 270. |
If u , v , w are the components of the velocity v of a moving particle, the equation represents |
| A. | one diamensional flow |
| B. | two dimensional flow |
| C. | three dimensional flow |
| D. | none of these. |
| Answer» D. none of these. | |
| 271. |
The discharge through a 100 mm diameter external mouth piece fitted to the side of a large vessel is 0.05948 m 3 /s. The head over the mouth piece is |
| A. | 2 m |
| B. | 2.5 m |
| C. | 3.0 m |
| D. | 4.0 m. |
| Answer» E. | |
| 272. |
If jet of water coming out from a nozzle with a velocity 9.81 m/s, the angle of elevation being 30°, the time to reach the highest point is |
| A. | 0.25 s |
| B. | 0.50 s |
| C. | 1.0 s |
| D. | 1.5 s. |
| Answer» C. 1.0 s | |
| 273. |
The mouth piece shown in the below figure is generally known as |
| A. | Internal mouth piece |
| B. | Re-entrant mouth piece |
| C. | Borda's mouth piece |
| D. | All the above. |
| Answer» E. | |
| 274. |
A tank 4m x 3m x 2m containing an oil of specific gravity 0.83 is moved with an acceleration g /2 m sec 2 . The ratio of the pressures at its bottom when it is moving vertically up and down, is |
| A. | 2 |
| B. | 3 |
| C. | 1/2 |
| D. | 1/3 |
| Answer» C. 1/2 | |
| 275. |
The Empirical formula for discharge over large rectangular weirs, is known as |
| A. | Francis formula |
| B. | Bazin formula |
| C. | Rehbook formula |
| D. | Kutter's formula. |
| Answer» C. Rehbook formula | |
| 276. |
A pipe of 0.1 m 2 cross sectional area suddenly enlarges to 0.3 m 2 cross-sectional area. If the discharge of the pipe is 0.3 m 3 /sec, the head loss is |
| A. | 2/ g m of water |
| B. | g /2 m of water |
| C. | 1 g m of water |
| D. | g m of water. |
| Answer» B. g /2 m of water | |
| 277. |
While applying the Bernoulli's equation = total head, the work any section done on the flow system, if any |
| A. | is added on the right side of the equation |
| B. | is added on the left side of the equation |
| C. | is ignored |
| D. | none of these. |
| Answer» C. is ignored | |
| 278. |
A cylinder 3 m in diameter and 4 m long retains water one side as shown in the below figure. If the weight of the cylinder is 2000 kgf, the horizontal reaction at B is |
| A. | 10,000 kgf |
| B. | 15,000 kgf |
| C. | 20,000 kgf |
| D. | 18,000 kgf. |
| Answer» E. | |
| 279. |
If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.1 kg/cm 2 , the pressure at a depth of 2.5 m, is |
| A. | 1 metre of water |
| B. | 2 metres of water |
| C. | 3 metres of water |
| D. | 3.5 metres of water |
| Answer» D. 3.5 metres of water | |