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.
| 251. |
Location of contour gradient for a high way is best set out from |
| A. | ridge down the hill |
| B. | saddle down the hill |
| C. | bottom to the ridge |
| D. | bottom to the saddle. |
| Answer» C. bottom to the ridge | |
| 252. |
Straight, parallel and widely spaced contours represent |
| A. | a steep surface |
| B. | a flat surface |
| C. | an inclined plane surface |
| D. | curved surface. |
| Answer» D. curved surface. | |
| 253. |
The ratio of the angles subtended at the eye, by the virtual image and the object, is known as telescope's |
| A. | resolving power |
| B. | brightness |
| C. | field of view |
| D. | magnification. |
| Answer» E. | |
| 254. |
The defect of a lens whereby rays of white light proceeding from a point get dispersed into their components and conveyed to various foci, forming a blurred and coloured image is known as |
| A. | chromatic aberration |
| B. | spherical aberration |
| C. | astigmatism |
| D. | coma. |
| Answer» B. spherical aberration | |
| 255. |
With usual notations, the expression V²/gR represents |
| A. | centrifugal force |
| B. | centrifugal ratio |
| C. | super elevation |
| D. | radial acceleration. |
| Answer» C. super elevation | |
| 256. |
Orientation of a plane table by solving two point problem is only adopted when |
| A. | saving of time is a main factor |
| B. | better accuracy is a main factor |
| C. | given points are inaccessible |
| D. | none of these. |
| Answer» D. none of these. | |
| 257. |
The slope correction may be ignored if |
| A. | the slope of the ground is less than 3° |
| B. | to slope of the ground is say 1 in 19 |
| C. | both (a) and (b) |
| D. | neither (a) nor (b) |
| Answer» D. neither (a) nor (b) | |
| 258. |
The difference in the lengths of an arc and its subtended chord on the earth surface for a distance of 18.2 km, is only |
| A. | 1 cm |
| B. | 5 cm |
| C. | 10 cm |
| D. | 100 cm. |
| Answer» D. 100 cm. | |
| 259. |
An ideal transition curve is |
| A. | cubic parabola |
| B. | cubic spiral |
| C. | clothoid spiral |
| D. | true spiral. |
| Answer» D. true spiral. | |
| 260. |
Staff readings on pegs x and y from X station are 1.755 m and 2.850 m, and from station Y on staff head at Y and X are 0.655 m and 1.560 m. If reduced level of X is 105.5 m, the reduced level of Y is |
| A. | 104.0 m |
| B. | 104.5 m |
| C. | 105.0 m |
| D. | 105.5 m |
| Answer» C. 105.0 m | |
| 261. |
Contours of different elevations may cross each other only in the case of |
| A. | an over hanging cliff |
| B. | a vertical cliff |
| C. | a saddle |
| D. | an inclined plane. |
| Answer» B. a vertical cliff | |
| 262. |
A well conditioned triangle has no angle less than |
| A. | 20° |
| B. | 30° |
| C. | 45° |
| D. | 60°. |
| Answer» C. 45° | |
| 263. |
If the whole circle bearing of a line is 270°, its reduced bearing is |
| A. | N 90° W |
| B. | S 90° W |
| C. | W 90° |
| D. | 90° W. |
| Answer» D. 90° W. | |
| 264. |
The lens equation 1/f = 1/f1 + 1/f2 is applicable |
| A. | when the thickness of the lens is small |
| B. | only to conjugate distances along the principal axis |
| C. | the computed quantities are accurate enough for geometrical optics of simple distances |
| D. | all the above. |
| Answer» E. | |
| 265. |
For setting out a simple curve, using two theodolites. |
| A. | offsets from tangents are required |
| B. | offsets from chord produced are required |
| C. | offsets from long chord are required |
| D. | none of these. |
| Answer» E. | |
| 266. |
The operation of making the algebraic sum of latitudes and departures of a closed traverse, each equal to zero, is known |
| A. | balancing the sights |
| B. | balancing the departures |
| C. | balancing the latitudes |
| D. | balancing the traverse. |
| Answer» E. | |
| 267. |
The line of sight is kept as high above ground surface as possible to minimise the error in the observed angles due to |
| A. | shimmering |
| B. | horizontal refraction |
| C. | vertical refraction |
| D. | both shimmering and horizontal refraction. |
| Answer» E. | |
| 268. |
If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for |
| A. | horizontal sights |
| B. | inclined sights upward |
| C. | inclined sight downward |
| D. | none of these. |
| Answer» B. inclined sights upward | |
| 269. |
If the rate of gain of radial acceleration is 0.3 m per sec³ and full centrifugal ratio is developed. On the curve the ratio of the length of the transition curve of same radius on road and railway, is |
| A. | 2.828 |
| B. | 3.828 |
| C. | 1.828 |
| D. | 0.828. |
| Answer» B. 3.828 | |
| 270. |
Accuracy of elevation of various points obtained from contour map is limited to |
| A. | 1/2 of the contour interval |
| B. | 1/4th of the contour interval |
| C. | 1/3rd of the contour interval |
| D. | 1/5th of the contour interval. |
| Answer» B. 1/4th of the contour interval | |
| 271. |
While measuring the distance between two points along upgrade with the help of a 20 m chain, the forward end of the chain is shifted forward through a distance |
| A. | 20 (sin θ - 1) |
| B. | 20 (cos θ - 1) |
| C. | 20 (sec θ - 1) |
| D. | 20 (cosec θ - 1). |
| Answer» D. 20 (cosec θ - 1). | |
| 272. |
Accuracy of 'fix' by two point problem, is |
| A. | bad |
| B. | good |
| C. | not reliable |
| D. | unique. |
| Answer» D. unique. | |
| 273. |
In a constant level tube, size of the bubble remains constant because upper wall is |
| A. | of relatively larger radius |
| B. | of relatively smaller radius |
| C. | flat |
| D. | convex downwards. |
| Answer» B. of relatively smaller radius | |
| 274. |
The included angles of a theodolite traverse, are generally measured |
| A. | clockwise from the forward station |
| B. | anti-clockwise from the back station |
| C. | anti-clockwise from the forward station |
| D. | clockwise from the back station. |
| Answer» E. | |
| 275. |
Centering error of a theodolite produces an error |
| A. | in all angles equally |
| B. | which does not vary with the direction or pointing |
| C. | which varies with the direction of pointing and inversely with the length of sight |
| D. | none of these. |
| Answer» D. none of these. | |
| 276. |
The 'point of curve' of a simple circular curve, is |
| A. | point of tangency |
| B. | point of commencement |
| C. | point of intersection |
| D. | mid-point of the curve |
| Answer» C. point of intersection | |
| 277. |
Which one of the following mistakes/errors may be cumulative + or - : |
| A. | bad ranging |
| B. | bad straightening |
| C. | erroneous length of chain |
| D. | sag. |
| Answer» D. sag. | |
| 278. |
In a precision traverse, included angles are measured by setting the vernier |
| A. | to read zero exactly on back station |
| B. | to read 5° exactly on back station |
| C. | some where near zero and reading both verniers on back station |
| D. | all the above. |
| Answer» D. all the above. | |
| 279. |
If deflection angles are measured in a closed traverse, the difference between the sum of the right-hand and that of the left hand angles should be equal to |
| A. | 0° |
| B. | 90° |
| C. | 180° |
| D. | 360° |
| Answer» E. | |
| 280. |
The distance between steps for measuring down hill to obtain better accuracy |
| A. | decreases with decrease of slope |
| B. | increases with increase of slope |
| C. | decreases with increase of slope |
| D. | decreases with decrease of weight of the chain. |
| Answer» D. decreases with decrease of weight of the chain. | |
| 281. |
The limiting length of an offset does not depend upon |
| A. | accuracy of the work |
| B. | method of setting out perpendiculars |
| C. | scale of plotting |
| D. | indefinite features to be surveyed. |
| Answer» E. | |
| 282. |
Stadia techeometry was discovered by James Watt in the year. |
| A. | 1670 |
| B. | 1770 |
| C. | 1870 |
| D. | 1900. |
| Answer» C. 1870 | |
| 283. |
Under ordinary conditions, the precision of a theodolite traverse is affected by |
| A. | systematic angular errors |
| B. | accidental linear errors |
| C. | systematic linear errors |
| D. | accidental angular errors. |
| Answer» D. accidental angular errors. | |
| 284. |
An internal focussing type surveying telescope, may be focussed by the movement of |
| A. | objective glass of the telescope |
| B. | convex-lens in the telescope |
| C. | concave lens in the telescope |
| D. | plano-convex lens in the telescope. |
| Answer» D. plano-convex lens in the telescope. | |
| 285. |
The horizontal angle between true meridian and magnetic meridian, is known |
| A. | bearing |
| B. | magnetic declination |
| C. | dip |
| D. | convergence. |
| Answer» C. dip | |
| 286. |
The sensitiveness of a level tube decreases if |
| A. | radius of curvature of its inner surface is increased |
| B. | diameter of the tube is increased |
| C. | length of the vapour bubble is increased |
| D. | both viscosity and surface tension are increased. |
| Answer» E. | |
| 287. |
The bearings of two traverse legs AB and BC are N52° 45' E and N34° 30' E respectively. The deflection angle is |
| A. | 18° 15' E |
| B. | 18° 15' N |
| C. | 18° 15' W |
| D. | 18° 15' L |
| Answer» E. | |
| 288. |
Which one of the following statements is correct ? |
| A. | when the axes of rotation of the graduated circle and the verniers are not coincident, the instrument possesses eccentricity |
| B. | the mean of the readings of the two verniers gives correct reading free from the eccentricity |
| C. | one vernier may be used if the readings of two verniers differ by a constant |
| D. | all the above. |
| Answer» E. | |
| 289. |
Ranging is an operation of |
| A. | reconnaissance |
| B. | judging the distance |
| C. | determination of slope |
| D. | establishing intermediate points between terminals. |
| Answer» E. | |
| 290. |
While viewing through a level telescope and moving the eye slightly, a relative movement occurs between the image of the levelling staff and the cross hairs. The instrument is |
| A. | correctly focussed |
| B. | not correctly focussed |
| C. | said to have parallax |
| D. | free from parallax. |
| Answer» D. free from parallax. | |
| 291. |
Pick up the correct statement from the following : |
| A. | the lines of sight while observing back sight and fore sight lie in the same horizontal plane |
| B. | the staff readings are measurements made vertically downwards from a horizontal plane |
| C. | the horizontal plane with reference to which staff readings are taken, coincides with the level surface through the telescope axis |
| D. | all the above. |
| Answer» E. | |
| 292. |
The line of collimation method of reduction of levels, does not provide a check on |
| A. | intermediate sights |
| B. | fore sights |
| C. | back sights |
| D. | reduced levels. |
| Answer» B. fore sights | |
| 293. |
In chain surveying field work is limited to |
| A. | linear measurements only |
| B. | angular measurements only |
| C. | both linear and angular measurements |
| D. | all the above. |
| Answer» B. angular measurements only | |
| 294. |
Two concave lenses of 60 cm focal length are cemented on either side of a convex lens of 15 cm focal length. The focal length of the combination is |
| A. | 10 cm |
| B. | 20 cm |
| C. | 30 cm |
| D. | 40 cm |
| Answer» D. 40 cm | |
| 295. |
One of the tacheometric constants is additive, the other constant, is |
| A. | subtractive constant |
| B. | multiplying constant |
| C. | dividing constant |
| D. | indicative constant. |
| Answer» C. dividing constant | |
| 296. |
Pick up the method of surveying in which field observations and plotting proceed simultaneously from the following |
| A. | chain surveying |
| B. | compass surveying |
| C. | plan table surveying |
| D. | tacheometric surveying. |
| Answer» D. tacheometric surveying. | |
| 297. |
The smaller horizontal angle between the true meridian and a survey line, is known |
| A. | declination |
| B. | bearing |
| C. | azimuth |
| D. | dip. |
| Answer» D. dip. | |
| 298. |
The Trapezoidal rule of volumes V of an embankment divided into a number of sections equidistant D, is given by |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 299. |
In quadrantal bearing system, back bearing of a line may be obtained from its forward bearing, by |
| A. | adding 180°, if the given bearing is less than 180° |
| B. | subtracting 180°, if the given bearing, is more than 180° |
| C. | changing the cardinal points, i.e. substituting N for S and E for W and vice-versa |
| D. | none of these. |
| Answer» D. none of these. | |
| 300. |
Correction per chain length of 100 links along a slope of α radians, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |