MCQOPTIONS
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MCQOPTIONS
This section includes 358 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Geodetic surveying is undertaken |
| A. | for production of accurate maps of wide areas |
| B. | for developing the science of geodesy |
| C. | making use of most accurate instruments and methods of observation |
| D. | all the above. |
| Answer» E. | |
| 202. |
Prismatic compass is considered more accurate than a surveyor's compass, because |
| A. | it is provided with a better magnetic needle |
| B. | it is provided with a sliding glass in the object vane |
| C. | its graduations are in whole circle bearings |
| D. | it is provided with a prism to facilitate reading of its graduated circle |
| Answer» E. | |
| 203. |
The direction of steepest slope on a contour, is |
| A. | along the contour |
| B. | at an angle of 45° to the contour |
| C. | at right angles to the contour |
| D. | none of these. |
| Answer» D. none of these. | |
| 204. |
A relatively fixed point of known elevation above datum, is called |
| A. | bench mark |
| B. | datum point |
| C. | reduced level |
| D. | reference point. |
| Answer» B. datum point | |
| 205. |
The first reading from a level station is |
| A. | foresight |
| B. | intermediate sight |
| C. | back-sight |
| D. | any sight. |
| Answer» D. any sight. | |
| 206. |
If 50 m point of a 100 m tape is 50 cm off line, and 50 m sections are straight, an error is generated equal to |
| A. | 1/10000 |
| B. | 1/15000 |
| C. | 1/20000 |
| D. | 1/25000 |
| Answer» D. 1/25000 | |
| 207. |
Tacheometric formula for horizontal distances using horizontal sights can also suitable be employed for inclined sights through θ by multiplying |
| A. | the constants by sin² θ |
| B. | the constants by cos² θ |
| C. | the constants by cos θ |
| D. | the multiplying constant by cos² θ and additive constant by cos θ. |
| Answer» E. | |
| 208. |
Measuring with a 30 m chain, 0.01 m too short, introduces |
| A. | positive compensating error |
| B. | negative compensating error |
| C. | positive cumulative error |
| D. | negative cumulative error. |
| Answer» D. negative cumulative error. | |
| 209. |
Plotting of inaccessible points on a plane table, is done by |
| A. | intersection |
| B. | traversing |
| C. | radiation |
| D. | none of these. |
| Answer» B. traversing | |
| 210. |
The rise and fall method of reduction of levels, provides a check on |
| A. | back sights |
| B. | fore sights |
| C. | intermediate sights |
| D. | all of these. |
| Answer» E. | |
| 211. |
True meridians are generally preferred to magnetic meridians because |
| A. | these converge to a point |
| B. | these change due to change in time |
| C. | these remain constant. |
| D. | None of these. |
| Answer» D. None of these. | |
| 212. |
From any point on the surface with a given inclination |
| A. | only one contour gradient is possible |
| B. | two contour gradients are possible |
| C. | indefinite contour gradients are possible |
| D. | all the above. |
| Answer» D. all the above. | |
| 213. |
Simpson's rule for calculating areas states that the area enclosed by a curvilinear figure divided into an even number of strips of equal width, is equal to |
| A. | half the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets, and thrice the sum of the even offsets |
| B. | one third the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets |
| C. | one third the width of a strip, multiplied by the sum of two extreme offsets, four times the sum of the remaining odd offsets, and twice the sum of the even offsets |
| D. | one sixth the width of a strip, multiplied by the sum of the two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets |
| Answer» C. one third the width of a strip, multiplied by the sum of two extreme offsets, four times the sum of the remaining odd offsets, and twice the sum of the even offsets | |
| 214. |
If a linear traverse follows a sharp curve round a large lake where it is difficult to have long legs, the accuracy of the traverse may be improved by |
| A. | taking short legs |
| B. | making repeated observations of angular and linear measurements |
| C. | making a subsidiary traverse to determine the length of a long leg |
| D. | all the above. |
| Answer» D. all the above. | |
| 215. |
The method generally preferred to for contouring an undulating area, is |
| A. | chain surveying |
| B. | plane table surveying |
| C. | tacheometrical surveying |
| D. | compass surveying. |
| Answer» D. compass surveying. | |
| 216. |
The method of reversal |
| A. | is usually directed to examine whether a certain part is truly parallel or perpendicular to another |
| B. | makes the erroneous relationship between parts evident |
| C. | both (a) and (b) |
| D. | neither (a) nor (b). |
| Answer» D. neither (a) nor (b). | |
| 217. |
The desired sensitivity of a bubble tube with 2 mm divisions is 30". The radius of the bubble tube should be |
| A. | 13.75 m |
| B. | 3.44 m |
| C. | 1375 m |
| D. | none of these. |
| Answer» B. 3.44 m | |
| 218. |
In a telescope the object glass of focal length 14 cm, is located at 20 cm from the diaphragm. The focussing lens is midway between them when a staff 16.50 m away is focussed. The focal length of the focussing lens, is |
| A. | 5.24 cm |
| B. | 6.24 cm |
| C. | 7.24 cm |
| D. | 8.24 cm |
| Answer» D. 8.24 cm | |
| 219. |
If the angular measurements of a traverse are more precise than its linear measurements, balancing of the traverse, is done by |
| A. | Bowditch's rule |
| B. | Transit rule |
| C. | Empirical rule |
| D. | all of the above. |
| Answer» C. Empirical rule | |
| 220. |
Profile levelling is usually done for determining |
| A. | contours of an area |
| B. | capacity of a reservoir |
| C. | elevations along a straight line |
| D. | boundaries of property |
| Answer» D. boundaries of property | |
| 221. |
The vertical angle between longitudinal axis of a freely suspended magnetic needle and a horizontal line at its pivot, is known |
| A. | declination |
| B. | azimuth |
| C. | dip |
| D. | bearing. |
| Answer» D. bearing. | |
| 222. |
α, β are the horizontal angles measured at the ends of a base line AB to a hill top whose angle of elevation from station A is θ°. The height of the hill top above the trunnion axis of the theodolite station, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 223. |
Correct distance obtained by an erroneous chain is: |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 224. |
If h is the difference in height between end points of a chain of length l, the required slope correction is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 225. |
If V is the speed of a locomotive in km per hour, g is the acceleration due to gravity, G is the distance between running faces of the rails and R is the radius of the circular curve, the required super elevation is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 226. |
If Δ is the angle of deflection of the curve, T1 and T2 are its points of tangencies, the angle between the tangent at T1 and long chord T1 T2 will be |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 227. |
To set out a parallel from a given inaccessible point to a given line AB, the following observations and madeDistance AB and angle PAM = a and angle PBA = b are measured where M is a point on the line BA produced. The perpendicular to the desired parallel line from A and B are : |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 228. |
The distance between the point of intersection of an up grade + g1% and downgrade g2% and the highest point of the vertical curve of length L, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 229. |
If F is the pull applied at the ends of tape in kg, l is the length of tape between end marks in metres, w is the weight of the tape in kg per metre run, then sag correction |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 230. |
Correction per chain length of 100 links along a slope of α° is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 231. |
If Δ is the angle of deflection of a simple curve of radius R, the distance between the mid-point of the curve and long chord, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 232. |
If Δ is the angle of deflection of a simple curve of radius R, the length of the curve is : |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 233. |
Accidental or compensating errors of length L are proportional to |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 234. |
If L is the specified length of a tape, L1 its actual length and S the measured distance, then, the true distance is given by the formula, |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 235. |
The following is the conventional sign of |
| A. | temple |
| B. | mosque |
| C. | idgah |
| D. | church |
| Answer» B. mosque | |
| 236. |
Following is a conventional sign of |
| A. | mosque |
| B. | temple |
| C. | church |
| D. | idgah |
| Answer» E. | |
| 237. |
If θ is the probable error of an observed bearing of a line of length l, the error over the whole length of the traverse of n lines of length l is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 238. |
The conventional sign shown in below figure represents a |
| A. | bridge carrying railway below road |
| B. | bridge carrying road below railway |
| C. | bridge carrying road and railway at the same level |
| D. | a level crossing |
| Answer» B. bridge carrying road below railway | |
| 239. |
If α is the angle between the polar ray and the tangent at the point of commencement of a lemniscate curve, the equation of the curve, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 240. |
The formula for the horizontal distances for inclined sights, on staff held normal is |
| A. | minus sign is used for angle of depression |
| B. | plus sign is used for angle of depression |
| C. | minus sign is used for angle of elevation |
| D. | None of these |
| Answer» B. plus sign is used for angle of depression | |
| 241. |
A dumpy level is set up with its eye-piece vertically over a peg A. The height from the top of peg A to the centre of the eye-piece is 1.540 m and the reading on peg B is 0.705 m. The level is then setup over B. The height of the eye-piece above peg B is 1.490 m and a reading on A is 2.195 m. The difference in level between A and B is |
| A. | 2.900 m |
| B. | 3.030 m |
| C. | 0.770 m |
| D. | 0.785 m |
| Answer» D. 0.785 m | |
| 242. |
The probable error of the adjusted bearing at the middle is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 243. |
If the area calculated form the plan plotted with measurements by an erroneous chain, accurate area of the plan is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 244. |
The area of a plane triangle ABC, having its base AC and perpendicular height h, is |
| A. | A |
| B. | B |
| C. | Both C and D |
| D. | All of the above |
| Answer» E. | |
| 245. |
Let angular value of one graduation of a tube of length x be φ seconds and R be the radius of its internal curved surface, then |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 246. |
A tape of length l and weight W kg/m is suspended at its ends with a pull of P kg, the sag correction is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 247. |
The diaphragm of a stadia theodolite is fitted with two additional |
| A. | horizontal hairs |
| B. | vertical hairs |
| C. | horizontal and two vertical hairs |
| D. | none of these. |
| Answer» B. vertical hairs | |
| 248. |
During secular variation of magnetic meridian at different places |
| A. | range of oscillations is constant |
| B. | period of oscillation is constant |
| C. | range and period of oscillation both vary |
| D. | period of oscillation only varies. |
| Answer» D. period of oscillation only varies. | |
| 249. |
Designation of a curve is made by : |
| A. | angle subtended by a chord of any length |
| B. | angle subtended by an arc of specified length |
| C. | radius of the curve |
| D. | curvature of the curve. |
| Answer» D. curvature of the curve. | |
| 250. |
Cross-staff is used for |
| A. | setting out right angles |
| B. | measuring contour gradient |
| C. | taking levels |
| D. | measuring distances |
| Answer» B. measuring contour gradient | |