McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 351. |
The contour interval depends upon the |
| A. | nature of the ground |
| B. | scale of map |
| C. | purpose and extent of survey |
| D. | all of these |
| Answer» D. all of these | |
| 352. |
The difference is length between the arc and the subtended chord on the surface of the earth for a distance of 18.2 km is only |
| A. | 10 mm |
| B. | 30 mm |
| C. | 50 mm |
| D. | 100 mm |
| Answer» A. 10 mm | |
| 353. |
The image formed by the objective in the plane of cross hairs is |
| A. | real and straight |
| B. | real and inverted |
| C. | virtual and straight |
| D. | virtual and inverted |
| Answer» B. real and inverted | |
| 354. |
The vertical distance between any two consecutive contours is called |
| A. | vertical equivalent |
| B. | horizontal equivalent |
| C. | contour interval |
| D. | contour gradient |
| Answer» C. contour interval | |
| 355. |
The principle of tacheometry is used |
| A. | for locating contours |
| B. | on hydrographic surveys |
| C. | for filling in detail in topographic surveys |
| D. | all of these |
| Answer» D. all of these | |
| 356. |
The correction to be applied to each 30 m chain for a line measured along a slope of ? is |
| A. | 30 (1 - sin ?) |
| B. | 30 (1 - cos ?) |
| C. | 30 (1 - tan ?) |
| D. | 30 (1 - cot ?) |
| Answer» B. 30 (1 - cos ?) | |
| 357. |
The accuracy in laying down the perpendicular offsets and in measuring them depends upon |
| A. | scale of plotting |
| B. | length of offset |
| C. | importance of the object |
| D. | all of these |
| Answer» D. all of these | |
| 358. |
The diurnal variation of the magnetic needle is |
| A. | more |
| B. | less |
| Answer» B. less | |
| 359. |
The horizontal angle between the true meridian and a survey line is called |
| A. | magnetic bearing |
| B. | azimuth |
| C. | dip |
| D. | magnetic declination |
| Answer» B. azimuth | |
| 360. |
When the angular and linear measurements are equally precise in traversing, the balancing of a traverse is done by |
| A. | transit rule |
| B. | empirical rule |
| C. | Bowditch's rule |
| D. | any one of these |
| Answer» C. Bowditch's rule | |
| 361. |
When the measured length is less than the actual length, the error is known as |
| A. | positive error |
| B. | negative error |
| C. | compensating error |
| D. | instrumental error |
| Answer» B. negative error | |
| 362. |
A branch of surveying in which the horizontal and vertical distances of points are obtained by instrumental observations, is known as |
| A. | chain surveying |
| B. | plane table surveying |
| C. | tacheometric surveying |
| D. | hydrographic surveying |
| Answer» C. tacheometric surveying | |
| 363. |
In a well conditioned triangle, no angle should be less than |
| A. | 30? |
| B. | 40? |
| C. | 50? |
| D. | 60? |
| Answer» A. 30? | |
| 364. |
In levelling, the correction for curvature (in metres) is equal, where D = Distance from the level to the staff reading in kilometres. |
| A. | 0.00785 D2 |
| B. | 0.0785 D2 |
| C. | 0.0112 D2 |
| D. | 0.0673 D2 |
| Answer» B. 0.0785 D2 | |
| 365. |
In order to fix up the directions of the survey lines in the compass survey, the horizontal angle between the survey line and a fixed line of reference is measured. This fixed line reference is the magnetic meridian. |
| A. | True |
| B. | False |
| Answer» A. True | |
| 366. |
The distance by which the last point of the traverse falls short to coincide with the starting point is called the closing error. |
| A. | Right |
| B. | Wrong |
| Answer» A. Right | |
| 367. |
In levelling, the effect of refraction varies with the atmospheric conditions |
| A. | Yes |
| B. | No |
| Answer» A. Yes | |
| 368. |
If a chain is used at a temperature at which it was calibrated, the error in measured length is positive. |
| A. | equal to |
| B. | lower than |
| C. | higher than |
| Answer» B. lower than | |
| 369. |
In plane table surveying, field work is recorded in a field book to be plotted afterwards. |
| A. | Agree |
| B. | Disagree |
| Answer» B. Disagree | |
| 370. |
The points on a contour gradient will have the same elevation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 371. |
The line joining the points having the same elevation above the datum surface, is called a |
| A. | contour surface |
| B. | contour line |
| C. | contour interval |
| D. | dontour gradient |
| Answer» B. contour line | |
| 372. |
The working from whole to the part is done in surveying in order to ensure that |
| A. | survey work is completed more quickly |
| B. | number of errors is minimum |
| C. | plotting is done more quickly |
| D. | errors and mistakes of one portion do not affect the remaining portion |
| Answer» D. errors and mistakes of one portion do not affect the remaining portion | |
| 373. |
The building is an example of obstacle in which chaining and vision are both obstructed. |
| A. | Correct |
| B. | Incorrect |
| Answer» A. Correct | |
| 374. |
An angle measured clockwise from the proceeding survey line to the following survey line is called |
| A. | direct angle |
| B. | vertical angle |
| C. | horizontal angle |
| D. | deflection angle |
| Answer» A. direct angle | |
| 375. |
The capacity of telescope of producing a sharp image is called its |
| A. | definition |
| B. | brightness |
| C. | sensitivity |
| D. | magnification |
| Answer» A. definition | |
| 376. |
The point on which the instrument is set up, is called station point |
| A. | True |
| B. | False |
| Answer» B. False | |
| 377. |
The bearing observed with a surveyor's compass is |
| A. | whole circle bearing |
| B. | quadrantal bearing |
| Answer» B. quadrantal bearing | |
| 378. |
A French cross-staff has a magnetic compass at the top. |
| A. | Right |
| B. | Wrong |
| Answer» B. Wrong | |
| 379. |
The method of levelling in which the heights of mountains are found by observing the temperature at which water boils is known as |
| A. | barometric levelling |
| B. | reciprocal levelling |
| C. | longitudinal levelling |
| D. | hypometry |
| Answer» D. hypometry | |
| 380. |
When the length of chain used in measuring distance is shorter than the standard length, the error in measured distance will be compensating error. |
| A. | Right |
| B. | Wrong |
| Answer» B. Wrong | |
| 381. |
A plain scale is used to read |
| A. | one dimension |
| B. | two dimensions |
| C. | three dimensions |
| D. | all of these |
| Answer» B. two dimensions | |
| 382. |
The surveying used to determine additional details such as boundaries of fields, is called |
| A. | city surveying |
| B. | location surveying |
| C. | cadastral surveying |
| D. | topographical surveying |
| Answer» C. cadastral surveying | |
| 383. |
The area of any irregular figure can be calculated accurately with the help of a planimeter. |
| A. | True |
| B. | False |
| Answer» A. True | |
| 384. |
The shift of a curve is |
| A. | equal to |
| B. | one-half |
| C. | one-third |
| D. | one-fourth |
| Answer» D. one-fourth | |
| 385. |
The method of measuring distance by pacing is chiefly used in |
| A. | reconnaissance surveys |
| B. | preliminary surveys |
| C. | location surveys |
| D. | all of these |
| Answer» A. reconnaissance surveys | |
| 386. |
In locating the details of an object whose direct measurement is not possible due to some obstruction, 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 distance from two different stations |
| D. | by angles from two different stations |
| Answer» B. by angle from one station and distance from the other station | |
| 387. |
The collimation method for obtaining the reduced levels of points does not provide a check on |
| A. | fore sights |
| B. | back sights |
| C. | change points |
| D. | intermediate sights |
| Answer» D. intermediate sights | |
| 388. |
In a whole circle bearing system, S 25? 15' E corresponds to |
| A. | 115? 15' |
| B. | 154? 45' |
| C. | 205? 15' |
| D. | 334? 45' |
| Answer» B. 154? 45' | |
| 389. |
The representative fraction of the scale is the ratio of the distance on the map or drawing to the corresponding distance on the ground |
| A. | Yes |
| B. | No |
| Answer» A. Yes | |
| 390. |
The deflection angle for any chord is equal to the deflection angle for the proceeding chord minus the tangential angle for that chord. |
| A. | Yes |
| B. | No |
| Answer» B. No | |
| 391. |
It is required to find the difference in elevation between two points A and B. During levelling, it is found that the staff reading at B is more than the staff reading at A. It indicates that the point A is |
| A. | higher than |
| B. | lower than |
| Answer» A. higher than | |
| 392. |
The obstacle, which obstructs chaining but not vision, is a |
| A. | river |
| B. | hill |
| C. | rising ground |
| D. | all of these |
| Answer» A. river | |
| 393. |
When 1 cm on a map represents 10 m on the ground, the representative fraction of the scale is |
| A. | 1?10 |
| B. | 1?100 |
| C. | 1?1000 |
| D. | 1?10000 |
| Answer» C. 1?1000 | |
| 394. |
The angle between the reflecting surfaces of a prism square is |
| A. | 30? |
| B. | 45? |
| C. | 60? |
| D. | 75? |
| Answer» B. 45? | |
| 395. |
The vertical distance above or below the datum is called |
| A. | reduced level of the point |
| B. | elevation of the point |
| C. | height of the instrument |
| D. | either (a) or (b) |
| Answer» D. either (a) or (b) | |
| 396. |
For setting out an offset at an angle of 45?, |
| A. | open |
| B. | french |
| C. | adjustable |
| Answer» B. french | |
| 397. |
When the effect of curvature is taken into account in levelling, the true staff reading is obtained by |
| A. | adding |
| B. | subtracting |
| Answer» B. subtracting | |
| 398. |
In the surveying telescope, diaphragm is held |
| A. | inside the eye piece |
| B. | inside the objective |
| C. | nearer to the eye piece |
| D. | nearer to the objective |
| Answer» C. nearer to the eye piece | |
| 399. |
A base line in a chain survey |
| 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» C. fixes up the directions of all other lines | |
| 400. |
The method of surveying used for dtermining the relative height of points on the surface of the earth is called |
| A. | levelling |
| B. | simple levelling |
| C. | longitudinal levelling |
| D. | differential levelling |
| Answer» A. levelling | |
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