McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 251. |
A tie line in a chain surveying |
| A. | checks the accuracy of the framework |
| B. | enables the surveyor to locate the interior details which are far away from the main chain lines |
| C. | fixes up the directions of all other lines |
| D. | all of the above |
| Answer» B. enables the surveyor to locate the interior details which are far away from the main chain lines | |
| 252. |
Generally, the deflection angle is measured twice, once with the telescope normal and once with the telescope reversed. |
| A. | True |
| B. | False |
| Answer» A. True | |
| 253. |
Contour lines cross ridge or valley lines at |
| A. | 30? |
| B. | 45? |
| C. | 60? |
| D. | 90? |
| Answer» D. 90? | |
| 254. |
The instrument used for setting out an offset at a right angle, is called |
| A. | open cross-staff |
| B. | french cross-staff |
| C. | adjustable cross-staff |
| D. | optical square |
| Answer» A. open cross-staff | |
| 255. |
The fundamental principle of surveying is to work from the |
| A. | whole to the part |
| B. | part to the whole |
| C. | lower level to higher level |
| D. | higher level to lower level |
| Answer» A. whole to the part | |
| 256. |
In levelling, the effect of refraction may be taken as |
| A. | one-half |
| B. | one-third |
| C. | one-fifth |
| D. | one-seventh |
| Answer» D. one-seventh | |
| 257. |
The latitude of a traverse line is obtained by multiplying its length with the cosine of its reduced bearing. |
| A. | Correct |
| B. | Incorrect |
| Answer» A. Correct | |
| 258. |
In a whole circle system, the bearing of a line is measured |
| A. | always clockwise from the south point of the reference meridian towards the line right round the circle |
| B. | clockwise or anticlockwise from the east or west whichever is nearer the line towards north or south |
| C. | clockwise or anticlockwise from the north or south whichever is nearer the line towards east or west |
| D. | none of the above |
| Answer» D. none of the above | |
| 259. |
The horizontal angle between the true meridian and magnetic meridian is known as |
| A. | true bearing |
| B. | dip |
| C. | local attraction |
| D. | magnetic declination |
| Answer» D. magnetic declination | |
| 260. |
If the fore bearing of a line is |
| A. | 36? 15' |
| B. | 126? 15' |
| C. | 143? 45' |
| D. | 216? 15' |
| Answer» D. 216? 15' | |
| 261. |
When the magnetic bearing of the sun at noon is 185? 20', the magnetic declination will be |
| A. | 5? 20' east |
| B. | 5? 20' west |
| C. | 5? 20' north |
| D. | 5? 20' south |
| Answer» B. 5? 20' west | |
| 262. |
The optical square is used to measure angles by |
| A. | refraction |
| B. | reflection |
| C. | double refraction |
| D. | double reflection |
| Answer» B. reflection | |
| 263. |
The multiplying constant for the tacheometer is, generally, kept as |
| A. | 20 |
| B. | 40 |
| C. | 60 |
| D. | 100 |
| Answer» D. 100 | |
| 264. |
The projection of a traverse line on a line parallel to the meridian is known as |
| A. | latitude |
| B. | departure |
| C. | bearing |
| Answer» A. latitude | |
| 265. |
Direct ranging is possible only when the end stations are |
| A. | close to each other |
| B. | not more than 100 m apart |
| C. | mutually intervisible |
| D. | located at highest points in the sea |
| Answer» C. mutually intervisible | |
| 266. |
The index glass in an optical square is |
| A. | wholly silvered |
| B. | wholly unsilvered |
| C. | one-fourth silvered and three-fourth unsilvered |
| D. | half silvered and half unsilvered |
| Answer» A. wholly silvered | |
| 267. |
The method of intersection in plane tabling is commonly used for |
| A. | locating the distant and inaccessible points |
| B. | locating the broken boundaries |
| C. | locating the points which may be used subsequently as the instrument stations |
| D. | all of the above |
| Answer» D. all of the above | |
| 268. |
A scale which has a common representative fraction, but read in different measures, is called a |
| A. | plain scale |
| B. | diagonal scale |
| C. | shrunk scale |
| D. | comparative scale |
| Answer» D. comparative scale | |
| 269. |
When the position of a point is to be fixed most accurately, it should be located by oblique offsets. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 270. |
In levelling, the correction for combined curvature and refraction (in metres) is equal to |
| A. | 0.00785 D2 |
| B. | 0.0785 D2 |
| C. | 0.0112 D2 |
| D. | 0.0673 D2 |
| Answer» D. 0.0673 D2 | |
| 271. |
In locating the details of inaccessible objects visible atleast from transit stations, the method used is |
| A. | by angles and distances from the same station |
| B. | by angle from one station and distance from the other station |
| C. | by distances from two different stations |
| D. | none of the above |
| Answer» D. none of the above | |
| 272. |
In geodetic surveying, the curvature of the earth is taken into consideration. |
| A. | Agree |
| B. | Disagree |
| Answer» A. Agree | |
| 273. |
The height of instrument is the height of the centre of the telescope above the ground where the level is set up. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 274. |
When the image formed by the objective is not situated in the plane of cross-hairs, |
| A. | the cross-hairs should be adjusted |
| B. | the eye-piece should be focussed |
| C. | the objective should be focussed |
| D. | the parallex should be removed |
| Answer» C. the objective should be focussed | |
| 275. |
The magnitude of super-elevation depends upon the speed of the vehicle and the radius of the curve |
| A. | Correct |
| B. | Incorrect |
| Answer» A. Correct | |
| 276. |
When the anallatic lens is provided in the telescope of a tacheometer, the additive constant is zero. |
| A. | Agree |
| B. | Disagree |
| Answer» A. Agree | |
| 277. |
In order to determine the natural features such as valleys, rivers, lakes etc., the surveying preferred is |
| A. | city surveying |
| B. | location surveying |
| C. | cadastral surveying |
| D. | topographical surveying |
| Answer» D. topographical surveying | |
| 278. |
An angle made by a survey line with the prolongation of the proceeding line, is known as |
| A. | direct angle |
| B. | vertical angle |
| C. | horizontal angle |
| D. | deflection angle |
| Answer» D. deflection angle | |
| 279. |
The bearing observed with a prismatic compass is |
| A. | whole circle bearing |
| B. | quadrantal bearing |
| Answer» A. whole circle bearing | |
| 280. |
Due to the magnetic influence of the earth, the magnetic needle of the prismatic compass will be inclined downward towards the pole. This inclination of the needle with the horizontal is known as |
| A. | true bearing |
| B. | dip |
| C. | local attraction |
| D. | magnetic declination |
| Answer» B. dip | |
| 281. |
The real image of an object formed by the objective must lie at the centre of telescope. |
| A. | Agree |
| B. | Disagree |
| Answer» B. Disagree | |
| 282. |
The direction of a true meridian at a station is invariable. |
| A. | Right |
| B. | Wrong |
| Answer» A. Right | |
| 283. |
In a whole circle bearing system N 25? 15' W corresponds to |
| A. | 115? 15' |
| B. | 154? 45' |
| C. | 205? 15' |
| D. | 334? 45' |
| Answer» D. 334? 45' | |
| 284. |
An open cross-staff is commonly used for setting out |
| A. | short offsets |
| B. | long offsets |
| C. | oblique offsets |
| D. | none of these |
| Answer» B. long offsets | |
| 285. |
The adjustable cross-staff is used for setting out an offset |
| A. | at an angle of 45? |
| B. | at an angle of 60? |
| C. | at a right angle |
| D. | at any angle |
| Answer» D. at any angle | |
| 286. |
To the sum of the first and last ordinates, add twice the sum of the intermediate ordinates. The total sum thus obtained is multiplied by the common distance between the ordinates. One-half of this product gives the required area. This rule of finding the area is called |
| A. | mid-ordinate rule |
| B. | trapezoidal rule |
| C. | average ordinate rule |
| D. | Simpson's rule |
| Answer» B. trapezoidal rule | |
| 287. |
The reduced level of the plane of collimation is |
| A. | equal to |
| B. | less than |
| C. | greater than |
| Answer» A. equal to | |
| 288. |
The deflection angle may have any value between |
| A. | 0? and 45? |
| B. | 0? and 90? |
| C. | 0? and 120? |
| D. | 0? and 180? |
| Answer» D. 0? and 180? | |
| 289. |
The strength of 'fix' of a plane table from three known points is good if the middle station is |
| A. | nearer |
| B. | farther |
| Answer» A. nearer | |
| 290. |
The angle by which the forward tangent deflects from the back tangent of a curve is called |
| A. | deflection angle |
| B. | central angle |
| C. | angle of intersection |
| D. | none of these |
| Answer» A. deflection angle | |
| 291. |
If the fore bearing of a line is N 26? 35' W, its back bearing will be |
| A. | S 26? 35' E |
| B. | S 26? 35' W |
| C. | N 26? 35' E |
| D. | N 53? 25' W |
| Answer» A. S 26? 35' E | |
| 292. |
A staff reading taken on a bench mark or a point of known elevation is called |
| A. | fore sight reading |
| B. | back sight reading |
| C. | intermediate sight |
| D. | any one of these |
| Answer» B. back sight reading | |
| 293. |
If the definition of a telescope is poor, it will produce a clear and district image. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 294. |
When the magnetic declination is negative, the magnetic meridian is towards the west of true meridian. |
| A. | Correct |
| B. | Incorrect |
| Answer» A. Correct | |
| 295. |
The theodolite is an instrument used for measuring very accurately |
| A. | horizontal angles only |
| B. | vertical angles only |
| C. | horizontal and vertical angles |
| D. | linear measurements |
| Answer» C. horizontal and vertical angles | |
| 296. |
The spacing of cross-sections in a hilly country is usually |
| A. | 5 m |
| B. | 10 m |
| C. | 15 m |
| D. | 20 m |
| Answer» D. 20 m | |
| 297. |
In a retrograde vernier, the smallest division of a vernier is |
| A. | equal to |
| B. | shorter than |
| C. | longer than |
| Answer» C. longer than | |
| 298. |
The diurnal variation of the magnetic needle is more in |
| A. | summer than winter |
| B. | winter than summer |
| Answer» A. summer than winter | |
| 299. |
An optical square is used for the same purpose as the cross-staff, but it is more accurate. |
| A. | Yes |
| B. | No |
| Answer» A. Yes | |
| 300. |
A reverse curve consists of |
| A. | a single curve of a circle connecting two straights |
| B. | two arcs of different radii bending in the same direction |
| C. | two arcs of equal radii bending in the same direction |
| D. | two arcs of equal or different radii bending in the opposite directions |
| Answer» D. two arcs of equal or different radii bending in the opposite directions | |
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