MCQOPTIONS
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MCQOPTIONS
This section includes 410 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
The type of surveying which requires least office work is |
| A. | tacheomefry |
| B. | trigonometrical levelling |
| C. | plane table surveying |
| D. | theodolite surveying |
| Answer» D. theodolite surveying | |
| 352. |
The circle in which a plane tangent to the earth's surface at the point of observation, intersects the celestial sphere, is called |
| A. | Visible horizon |
| B. | Sensible horizon |
| C. | Celestial horizon |
| D. | True horizon |
| Answer» C. Celestial horizon | |
| 353. |
The point on the celestial sphere vertically below the observer's position, is called |
| A. | Zenith |
| B. | Celestial point |
| C. | Nadir |
| D. | Pole |
| Answer» D. Pole | |
| 354. |
In a tropical year, the numbers of sidereal days are |
| A. | One less than mean solar days |
| B. | One more than mean solar days |
| C. | Equal to mean solar days |
| D. | None of these |
| Answer» C. Equal to mean solar days | |
| 355. |
Systematic errors |
| A. | Always follow some definite mathematical law |
| B. | Can be removed by applying corrections to the observed values |
| C. | Are also known as cumulative errors |
| D. | All the above |
| Answer» E. | |
| 356. |
Theodolite is an instrument used for |
| A. | tightening the capstan-headed nuts of level tube |
| B. | measurement of horizontal angles only |
| C. | measurement of vertical angles only |
| D. | measurement of both horizontal and vertical angles |
| Answer» E. | |
| 357. |
Cross staff is an instrument used for |
| A. | measuring approximate horizontal angles |
| B. | setting out right angles |
| C. | measuring bearings of the lines |
| D. | none of the above |
| Answer» C. measuring bearings of the lines | |
| 358. |
Subtense bar is an instrument used for |
| A. | levelling |
| B. | measurement of horizontal distances in plane areas |
| C. | measurement of horizontal distances in undulated areas |
| D. | measurement of angles |
| Answer» D. measurement of angles | |
| 359. |
The difference of levels between two stations A and B is to be determined. For best results, the instrument station should be |
| A. | equidistant from A and B |
| B. | closer to the higher station |
| C. | closer to the lower station |
| D. | as far as possible from the line AB |
| Answer» B. closer to the higher station | |
| 360. |
The First Point of Aeries |
| A. | Is the point in the celestial sphere where zero meridian crosses the celestial equator |
| B. | Is usually denoted by the Greek letter ? |
| C. | Is located near the very conspicuous rectangle of stars in the constellations of Pegasus and Andromeda |
| D. | All the above |
| Answer» E. | |
| 361. |
On vertical photographs, height displacement is |
| A. | Positive for points above datum |
| B. | Negative for points below datum |
| C. | Zero for points vertically below the air station |
| D. | All the above |
| Answer» E. | |
| 362. |
In a spherical triangle ABC, right angled at C, sin b equals |
| A. | sin a cos A |
| B. | cos a sin A |
| C. | tan a cot A |
| D. | cot A tan a |
| Answer» D. cot A tan a | |
| 363. |
If two points differing by 1° of latitude and of the same longitude is 110 km apart on the earth, then two astronomical positions on the moon is about |
| A. | 10 km |
| B. | 25 km |
| C. | 30 km |
| D. | 50 km |
| Answer» D. 50 km | |
| 364. |
The want of correspondence in stereo-photographs |
| A. | Is a good property |
| B. | Is a function of tilt |
| C. | Is not affected by the change of flying height between photographs |
| D. | Is minimum when θ is 3° |
| Answer» C. Is not affected by the change of flying height between photographs | |
| 365. |
The position of a heavenly body on the celestial sphere can be completely specified by |
| A. | Its altitude and azimuth |
| B. | Its declination and hour angle |
| C. | Its declination and right ascension |
| D. | All the above |
| Answer» E. | |
| 366. |
If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated |
| A. | on its outer spindle with a relative motion between the vernier and graduated scale of lower plate |
| B. | on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate |
| C. | on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate |
| D. | on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate |
| Answer» D. on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate | |
| 367. |
The process of determining the locations of the instrument station by drawing re sectors from the locations of the known stations is called |
| A. | radiation |
| B. | intersection |
| C. | resection |
| D. | traversing |
| Answer» D. traversing | |
| 368. |
To have greatest coverage of the area, the type of photography used, is |
| A. | High oblique |
| B. | Low oblique |
| C. | Vertical |
| D. | None of these |
| Answer» B. Low oblique | |
| 369. |
The parallax of a point on the photograph is due to |
| A. | Ground elevation |
| B. | Flying height |
| C. | Length of air base |
| D. | All the above |
| Answer» E. | |
| 370. |
Polaris is usually observed for the determination of the latitude when it is |
| A. | At culmination |
| B. | At elongation |
| C. | Neither at culmination nor at elongation |
| D. | Either at culmination or at elongation |
| Answer» B. At elongation | |
| 371. |
In a truly vertical photograph, |
| A. | Principal point coincides the isocenter |
| B. | Iso-centre coincides the plumb point |
| C. | Plumb point coincides the principal point |
| D. | All the above |
| Answer» E. | |
| 372. |
With standard meridian as 82° 30' E the standard time at longitude 90° E is 8 h 30 m. The local mean time at the place will be |
| A. | 7 h 00 m |
| B. | 7 h 30 m |
| C. | 8 h 00 m |
| D. | 9 h 00 m |
| Answer» E. | |
| 373. |
The displacement of the pictured position of a point of h elevation on a vertical photograph taken with a camera of 30 cm focal length, from an altitude of 3000 m, is |
| A. | 4.4 mm |
| B. | 5.5 mm |
| C. | 6.5 mm |
| D. | 7.5 mm |
| Answer» E. | |
| 374. |
A star may culminate at zenith if its declination is |
| A. | Greater than the longitude of the place |
| B. | Less than the latitude of the place |
| C. | Equal to the latitude of the place |
| D. | None of these |
| Answer» D. None of these | |
| 375. |
Horizontal distances obtained by thermometric observations |
| A. | require slope correction |
| B. | require tension correction |
| C. | require slope and tension corrections |
| D. | do not require slope and tension corrections |
| Answer» E. | |
| 376. |
Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations? |
| A. | Measuring angle and distance from one transit station |
| B. | Measuring angles to the point from at least two stations |
| C. | Measuring angle at one station and distance from other |
| D. | Measuring distance from two points on traverse line |
| Answer» C. Measuring angle at one station and distance from other | |
| 377. |
For any star to be a circumpolar star, its |
| A. | Declination must be 0° |
| B. | Declination must be 90° |
| C. | Distance from the pole must be less than the latitude of the observer |
| D. | Hour angle must be 180° |
| Answer» D. Hour angle must be 180° | |
| 378. |
The adjustment of horizontal cross hair is required particularly when the instrument is used for |
| A. | leveling |
| B. | prolonging a straight line |
| C. | measurement of horizontal angles |
| D. | all of the above |
| Answer» B. prolonging a straight line | |
| 379. |
Bowditch rule is applied to |
| A. | an open traverse for graphical adjustment |
| B. | a closed traverse for adjustment of closing error |
| C. | determine the effect of local attraction |
| D. | none of the above |
| Answer» C. determine the effect of local attraction | |
| 380. |
A Nautical mile is |
| A. | One minute arc of the great circle passing through two points |
| B. | One minute arc of the longitude |
| C. | 1855.109 m |
| D. | All the above |
| Answer» E. | |
| 381. |
Local attraction in compass surveying may exist due to |
| A. | incorrect levelling of the magnetic needle |
| B. | loss of magnetism of the needle |
| C. | friction of the needle at the pivot |
| D. | presence of magnetic substances near the instrument |
| Answer» E. | |
| 382. |
Which of the following is not the function of levelling head ? |
| A. | to support the main part of the instrument |
| B. | to attach the theodolite to the tripod |
| C. | to provide a means for leveling the theodolite |
| D. | none of the above |
| Answer» E. | |
| 383. |
In an internal focussing type of telescope, the lens provided is |
| A. | concave |
| B. | convex |
| C. | plano-convex |
| D. | plano-concave |
| Answer» B. convex | |
| 384. |
The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is |
| A. | 1 : 10,000 |
| B. | 1 : 15,000 |
| C. | 1 : 20,000 |
| D. | 1 : 30,000 |
| Answer» D. 1 : 30,000 | |
| 385. |
The rate of change of parallax dp/dh with respect to change in h, may be expressed as |
| A. | fB/(H - h) |
| B. | fB/(H - h)² |
| C. | fB/(H + h) |
| D. | fB/(H + h)² |
| Answer» C. fB/(H + h) | |
| 386. |
The position of the sun when its north declination is maximum is known as |
| A. | Vernal equinox |
| B. | Autumnal equinox |
| C. | Summer solstice |
| D. | Winter solstice |
| Answer» D. Winter solstice | |
| 387. |
The prismatic compass and surveyor’s compass |
| A. | give whole circle bearing (WCB) of a line and quadrantal bearing (QB) of a line respectively |
| B. | both give QB of a line and WCB of a line |
| C. | both give QB of a line |
| D. | both give WCB of a line |
| Answer» B. both give QB of a line and WCB of a line | |
| 388. |
If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will |
| A. | increase |
| B. | decrease |
| C. | not change |
| D. | either ‘A’ or ‘B’ |
| Answer» B. decrease | |
| 389. |
The sidereal day is the time interval between two successive upper transits of |
| A. | Mean sun |
| B. | First point of Aries |
| C. | First point of Libra |
| D. | The polar star |
| Answer» C. First point of Libra | |
| 390. |
Longitude of a place is the angular distance between the meridian of the place and |
| A. | The standard meridian |
| B. | The International Date Line |
| C. | That of Greenwich |
| D. | Both (A) and (C) of above |
| Answer» E. | |
| 391. |
The shortest distance between two places measured along the surface of the earth, is |
| A. | Length of the equator between their longitudes |
| B. | Length of the parallel between their longitudes |
| C. | Length of the arc of the great circle passing through them |
| D. | None of these |
| Answer» D. None of these | |
| 392. |
The correction applied to the measured base of length ‘L’ is |
| A. | Tension = (P - Ps)L/AE |
| B. | Sag = L³w²/24P² where w is the weight of tape/m |
| C. | Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports |
| D. | All the above |
| Answer» E. | |
| 393. |
Direct method of contouring is |
| A. | a quick method |
| B. | adopted for large surveys only |
| C. | most accurate method |
| D. | suitable for hilly terrains |
| Answer» D. suitable for hilly terrains | |
| 394. |
With the rise of temperature, the sensitivity of a bubble tube |
| A. | decreases |
| B. | increases |
| C. | remains unaffected |
| D. | none of the above |
| Answer» B. increases | |
| 395. |
Polaris is usually observed for the determination of the azimuth when it is |
| A. | At culmination |
| B. | At elongation |
| C. | Neither at culmination nor at elongation |
| D. | Either at culmination or at elongation |
| Answer» C. Neither at culmination nor at elongation | |
| 396. |
If the general ground level of any area is 10% of the flying height, the principal points may be used as the centers of radial directions for small scale mapping even in tilted photograph up to |
| A. | 1° |
| B. | 2° |
| C. | 3° |
| D. | 4° |
| Answer» D. 4° | |
| 397. |
For plane ground the scale of a vertical photograph will be same as that of a tiled photograph along the photo parallel through |
| A. | Isocenter |
| B. | Plumb point |
| C. | Principal point |
| D. | None of these |
| Answer» B. Plumb point | |
| 398. |
Triangulation surveys are carried out for locating |
| A. | Control points for surveys of large areas |
| B. | Control points for photogrammetric surveys |
| C. | Engineering works, i.e. terminal points of long tunnels, bridge abutments, etc. |
| D. | All the above |
| Answer» E. | |
| 399. |
The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The latitude of the place, is |
| A. | 80° |
| B. | 70° |
| C. | 60° |
| D. | 40° |
| Answer» E. | |
| 400. |
If the altitudes of a star at its upper and lower transits are 60° 30' and 19° 30' respectively, the latitude of the place, is |
| A. | 30° |
| B. | 35° |
| C. | 30° |
| D. | 45° |
| Answer» D. 45° | |