MCQOPTIONS
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MCQOPTIONS
This section includes 301 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Closed contours, with higher value inwards, represent a |
| A. | Depression |
| B. | Hillock |
| C. | Plain surface |
| D. | None of the above |
| Answer» C. Plain surface | |
| 202. |
During levelling if back sight is more than foresight |
| A. | The forward staff is at lower point |
| B. | The back staff is at lower point |
| C. | The difference in level, cannot be ascertained |
| D. | None of these |
| Answer» C. The difference in level, cannot be ascertained | |
| 203. |
The imaginary line passing through the intersection of cross hairs and the optical centre of the objective, is known as |
| A. | Line of sight |
| B. | Line of collimation |
| C. | Axis of the telescope |
| D. | None of these |
| Answer» C. Axis of the telescope | |
| 204. |
Flint glass |
| A. | Has slightly the greater refracting power than crown glass |
| B. | Has roughly double refracting power than that of crown |
| C. | And crown glass proportions yield the required focal length and neutralise the dispersion produced by the convex lens at the emergence from the concave |
| D. | All the above |
| Answer» E. | |
| 205. |
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 | |
| 206. |
If is the difference in level between end points separated by , then the slope correction is [(h²/2l) + (h4/8l3)]. The second term may be neglected if the value of in a 20 m distance is less than |
| A. | ½ m |
| B. | 1 m |
| C. | 2 m |
| D. | 3 m |
| Answer» E. | |
| 207. |
If the chain line which runs along N-S direction is horizontal and the ground in E-W direction is sloping |
| A. | It is possible to set offsets correctly on east side |
| B. | It is possible to set offsets correctly on east side |
| C. | It is not possible to set offsets correctly on west side |
| D. | It is possible to set offsets correctly on both sides |
| Answer» E. | |
| 208. |
In horizontal angles, the error due to imperfect levelling of the plate bubble is |
| A. | Large when sights are nearly level |
| B. | Large for long sights |
| C. | Less for steeply inclined sights |
| D. | Large for steeply inclined sights |
| Answer» E. | |
| 209. |
Reduced bearing of a line is an angle between |
| A. | North line and given line measured clockwise |
| B. | North line and given line measured anticlockwise |
| C. | East or west and the given line |
| D. | Given line and the part of the meridian whether N end or S end, lying adjacent to it |
| Answer» E. | |
| 210. |
The staff reading at a distance of 80 m from a level with the bubble at its centre is 1.31 m. When the bubble is moved by 5 divisions out of the centre, the reading is 1.39 m. The angular value of the one division of the bubble, is |
| A. | 28.8 sec |
| B. | 41.25 sec |
| C. | 14.52 sec |
| D. | 25.05 |
| Answer» C. 14.52 sec | |
| 211. |
If vertical angles of inclined sights do not exceed 10° and non-verticality of the staff remains within 1°, stadia system of tacheometric observations are made on |
| A. | Staff normal |
| B. | Staff vertical |
| C. | Staff normal as well as vertical |
| D. | None of these |
| Answer» B. Staff vertical | |
| 212. |
A lemniscate curve will not be transitional throughout, if its deflection angle, is |
| A. | 45° |
| B. | 60° |
| C. | 90° |
| D. | 120° |
| Answer» B. 60° | |
| 213. |
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 | |
| 214. |
Setting out a curve by two theodolite method, involves |
| A. | Linear measurements only |
| B. | Angular measurements only |
| C. | Both linear and angular measurements |
| D. | None of these |
| Answer» C. Both linear and angular measurements | |
| 215. |
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 | |
| 216. |
An angle of deflection right, may be directly obtained by setting the instrument to read |
| A. | Zero on back station |
| B. | 180° on back station |
| C. | 90° |
| D. | 270° on back station |
| Answer» B. 180° on back station | |
| 217. |
The sum of the interior angles of a geometrical figure laid on the surface of the earth differs from that of the corresponding plane figure only to the extent of one second for every |
| A. | 100 sq. km of area |
| B. | 150 sq. km of area |
| C. | 200 sq. km of area |
| D. | None of these |
| Answer» D. None of these | |
| 218. |
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 | |
| 219. |
If the length of a transition curve to be introduced between a straight and a circular curve of radius 500 m is 90 m, the maximum deflection angle to locate its junction point, is |
| A. | 1°43′ 08″ |
| B. | 1°43′ 18″ |
| C. | 1°43′ 28″ |
| D. | 1°43′ 38″ |
| Answer» D. 1°43′ 38″ | |
| 220. |
Total latitude of a point is positive if it lies |
| A. | North of the reference parallel |
| B. | South of the reference parallel |
| C. | East of the reference parallel |
| D. | West of the reference parallel |
| Answer» B. South of the reference parallel | |
| 221. |
The number of horizontal cross wires in a stadia diaphragm is |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» D. Four | |
| 222. |
The operation of revolving a plane table about its vertical axis so that all lines on the sheet become parallel to corresponding lines on the ground, is known |
| A. | Levelling |
| B. | Centering |
| C. | Orientation |
| D. | Setting |
| Answer» D. Setting | |
| 223. |
Surveys which are carried out to depict mountains, rivers, water bodies, wooded areas and other cultural details, are known as |
| A. | Cadastral surveys |
| B. | City surveys |
| C. | Topographical surveys |
| D. | Guide map surveys |
| Answer» D. Guide map surveys | |
| 224. |
The process of determining the locations of the instrument station by drawing re sectors from the locations of the known stations is |
| A. | Radiation |
| B. | Intersection |
| C. | Resection |
| D. | Traversing |
| Answer» D. Traversing | |
| 225. |
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 | |
| 226. |
In optical reading instruments |
| A. | The vertical circle is usually continuous from 0° to 359° |
| B. | The readings increase when the telescope is elevated in the face left position |
| C. | The readings decrease when the telescope is elevated in the face right position |
| D. | All the above |
| Answer» E. | |
| 227. |
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 | |
| 228. |
Refraction correction |
| A. | Completely eliminates curvature correction |
| B. | Partially eliminates curvature correction |
| C. | Adds to the curvature correction |
| D. | Has no effect on curvature correction |
| Answer» C. Adds to the curvature correction | |
| 229. |
The branch of surveying in which both horizontal and vertical positions of a point, are determined by making instrumental observations, is known |
| A. | Tacheometry |
| B. | Tachemetry |
| C. | Telemetry |
| D. | All the above |
| Answer» E. | |
| 230. |
In case of a double line river, contours are |
| A. | Stopped at the banks of the river |
| B. | Stopped at the edge of the river |
| C. | Drawn across the water |
| D. | Drawn by parabolic curves having their vertex at the centre of the water |
| Answer» C. Drawn across the water | |
| 231. |
Rankine’s deflection angle in minutes is obtained by multiplying the length of the chord by |
| A. | Degree of the curve |
| B. | Square of the degree of the curve |
| C. | Inverse of the degree of the curve |
| D. | None of these |
| Answer» B. Square of the degree of the curve | |
| 232. |
Diurnal variation of magnetic declination is |
| A. | Greater at equator than nearer the poles |
| B. | Less at equator than nearer the poles |
| C. | Less in summer than in winter |
| D. | Same at all latitudes and during different months |
| Answer» C. Less in summer than in winter | |
| 233. |
If the focal length of the object glass is 25 cm and the distance from object glass to the trunnion axis is 15 cm, the additive constant |
| A. | 0.1 |
| B. | 0.4 |
| C. | 0.6 |
| D. | 1.33 |
| Answer» C. 0.6 | |
| 234. |
For true difference in elevations between two points and , the level must be set up |
| A. | At any point between A and B |
| B. | At the exact midpoint of A and B |
| C. | Near the point A |
| D. | Near the point B |
| Answer» C. Near the point A | |
| 235. |
The lens equation 1/f = 1/ + 1/ 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. | |
| 236. |
Transit rule of adjusting the consecutive coordinates of a traverse is used where |
| A. | Linear and angular measurements of the traverse are of equal accuracy |
| B. | Angular measurements are more accurate than linear measurements |
| C. | Linear measurements are more accurate than angular measurements |
| D. | All of the above |
| Answer» C. Linear measurements are more accurate than angular measurements | |
| 237. |
The bearings of the lines AB and BC are 146° 30′ and 68° 30′. The included angle ABC is |
| A. | 102° |
| B. | 78° |
| C. | 45° |
| D. | None of these |
| Answer» B. 78° | |
| 238. |
In geodetic surveys higher accuracy is achieved, if |
| A. | Curvature of the earth surface is ignored |
| B. | Curvature of the earth surface is taken into account |
| C. | Angles between the curved lines are treated as plane angles |
| D. | None of these |
| Answer» C. Angles between the curved lines are treated as plane angles | |
| 239. |
Imaginary line passing through points having equal magnetic declination is termed as |
| A. | Isogon |
| B. | Agonic line |
| C. | Isoclinic line |
| D. | None of these |
| Answer» B. Agonic line | |
| 240. |
Which of the following methods of plane table surveying is used to locate the position of an inaccessible point? |
| A. | Radiation |
| B. | Intersection |
| C. | Traversing |
| D. | Resection |
| Answer» C. Traversing | |
| 241. |
It is more difficult to obtain good results while measuring horizontal distance by stepping |
| A. | Up-hill |
| B. | Down-hill |
| C. | In low undulations |
| D. | In plane areas |
| Answer» B. Down-hill | |
| 242. |
Whole circle bearing of a line is preferred to a quadrantal bearing merely because |
| A. | Bearing is not completely specified by an angle |
| B. | Bearing is completely specified by an angle |
| C. | Sign of the correction of magnetic declination is different in different quadrants |
| D. | Its Trigonometrical values may be extracted from ordinary tables easily |
| Answer» C. Sign of the correction of magnetic declination is different in different quadrants | |
| 243. |
In tacheometrical observations, vertical staff holding is generally preferred to normal staffing, due to |
| A. | Ease of reduction of observations |
| B. | Facility of holding |
| C. | Minimum effect of careless holding on the result |
| D. | None of these |
| Answer» D. None of these | |
| 244. |
Select the correct statement. |
| A. | Contour interval on any map is kept constant. |
| B. | Direct method of contouring is cheaper than indirect method. |
| C. | Intervisibility of points on a contour map cannot be ascertained. |
| D. | Slope of a hill cannot be determined with the help of contours. |
| Answer» B. Direct method of contouring is cheaper than indirect method. | |
| 245. |
If is the perimete D is the closing error in departure, the correction for the departure of a traverse side of length , according to Bowditch rule, is |
| A. | D × L/l |
| B. | D × l²/L |
| C. | L × l D |
| D. | D × l/L |
| Answer» E. | |
| 246. |
The angle of intersection of a curve is the angle between |
| A. | Back tangent and forward tangent |
| B. | Prolongation of back tangent and forward tangent |
| C. | Forward tangent and long chord |
| D. | Back tangent and long chord |
| Answer» B. Prolongation of back tangent and forward tangent | |
| 247. |
The curve composed of two arcs of different radii having their centres on the opposite side of the curve, is known |
| A. | A simple curve |
| B. | A compound curve |
| C. | A reverse curve |
| D. | A vertical curve |
| Answer» D. A vertical curve | |
| 248. |
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 | |
| 249. |
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 | |
| 250. |
The properties of autogenous curve for automobiles are given by |
| A. | True spiral |
| B. | Cubic parabola |
| C. | Bernoulli’s Lemniscate |
| D. | Clothoid spiral |
| Answer» D. Clothoid spiral | |