McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 451. |
In order to measure a horizontal angle more accurately than a vernier, a |
| A. | method of repitition is used |
| B. | method of reiteration is used |
| C. | method of deflection angles is used |
| D. | method of double observations is used |
| Answer» A. method of repitition is used | |
| 452. |
An axis about which the telescope can be rotated in a horizontal plane, is called |
| A. | horizontal axis |
| B. | vertical axis |
| C. | axis of the level tube |
| D. | line of collimation |
| Answer» B. vertical axis | |
| 453. |
A simple circular cruve is designated by the |
| A. | radius of the curve |
| B. | cruvature of the curve |
| C. | angle subtended at the centre by a chord of any length |
| D. | angle subtended at the centre by a chord of particular length |
| Answer» D. angle subtended at the centre by a chord of particular length | |
| 454. |
A check 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» A. checks the accuracy of the framework | |
| 455. |
In a duadrantal 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 wouth whichever is nearer the line towards east or west |
| D. | none of the above |
| Answer» C. clockwise or anticlockwise from the north or wouth whichever is nearer the line towards east or west | |
| 456. |
An arbitrary surface with reference to which the elevation of points are measured and compared, is called |
| A. | datum surface |
| B. | level surface |
| C. | horizontl surface |
| D. | vertical surface |
| Answer» A. datum surface | |
| 457. |
The error in measured length due to incorrect holding of chain is |
| A. | compensating error |
| B. | cumulative error |
| C. | instrumental error |
| D. | negative error |
| Answer» A. compensating error | |
| 458. |
At the equator, the amount of dip is |
| A. | 0? |
| B. | 45? |
| C. | 60? |
| D. | 90? |
| Answer» A. 0? | |
| 459. |
A transition curve when inserted between the tangent and the circular curve |
| A. | should meet the original straight tangentially |
| B. | should meet the circular curve tangentially |
| C. | the rate of increase of curvature along the transition curve should be same as that of increase of super-elevation |
| D. | all of the above |
| Answer» D. all of the above | |
| 460. |
An imaginary line tangential to the longitudinal curve of the level at the centre of the tube is called |
| A. | horizontal axis |
| B. | vertical axis |
| C. | axis of the level tube |
| D. | line of collimation |
| Answer» C. axis of the level tube | |
| 461. |
Which of the following statement is wrong? |
| A. | The distance measured parallel to the north-south line is called latitude of the line. |
| B. | The distance measured parallel to the east-west line is called departure of the line. |
| C. | The latitude is positive when measured downward or southward. |
| D. | The departure is negative when measured to the left or westward. |
| Answer» C. The latitude is positive when measured downward or southward. | |
| 462. |
The traversing by the method of deflection angles is chiefly used in |
| A. | canals |
| B. | highways |
| C. | railways |
| D. | all of these |
| Answer» D. all of these | |
| 463. |
The magnification of a telescope is the ratio of the angle subtended at the eye by the virtual image of the object to that subtended by the object. |
| A. | Correct |
| B. | Incorrect |
| Answer» A. Correct | |
| 464. |
If any closed traverse, if the survey work is correct, then |
| A. | the algebraic sum of latitudes should be equal to zero |
| B. | the algebraic sum of departures should be equal to zero |
| C. | the sum of northings should be equal to the sum of southings |
| D. | all of the above |
| Answer» D. all of the above | |
| 465. |
The image produced by the telescope will be dull, if it has |
| A. | dull |
| B. | bright |
| Answer» B. bright | |
| 466. |
The magnetic bearing of a line is 55? 30v and the magnetic declination is 4? 30' west. The true bearing of a line will be |
| A. | 30? |
| B. | 34? 30 |
| C. | 49? |
| D. | 51? |
| Answer» D. 51? | |
| 467. |
The line of collimation should be |
| A. | vertical |
| B. | horizontal |
| Answer» B. horizontal | |
| 468. |
In indirect method of contouring, the best method of interpolation of contours is |
| A. | by graphical method |
| B. | by estimation |
| C. | by arithmetical calculation |
| D. | all of these |
| Answer» C. by arithmetical calculation | |
| 469. |
When (h) is the difference in heights between the extremities of a chain length (l), then the correction for slope required is |
| A. | h / l |
| B. | h2 / l |
| C. | h2 / 2l |
| D. | h / el |
| Answer» C. h2 / 2l | |
| 470. |
The instrument attached to the wheel of a vehicle in order to measure the distance travelled, is called |
| A. | passometer |
| B. | pedometer |
| C. | odometer |
| D. | speedometer |
| Answer» C. odometer | |
| 471. |
An average length of a pace is |
| A. | 60 cm |
| B. | 80 cm |
| C. | 100 cm |
| D. | 120 cm |
| Answer» B. 80 cm | |
| 472. |
When the curve is to be set out over a rough ground, the method used is |
| A. | Rankine's method |
| B. | two theodolite method |
| C. | tacheometric method |
| D. | either (b) or (c) |
| Answer» D. either (b) or (c) | |
| 473. |
The capability of showing small angular movements of the level rube vertically, is called its sensitivity. |
| A. | Right |
| B. | Wrong |
| Answer» A. Right | |
| 474. |
The difference between the sum of the angles of a apherical triangle on the earth's surface and the angles of the corresponding plane triangle for every 195.5 km2 of area is only |
| A. | 1 second |
| B. | 5 second |
| C. | 10 second |
| D. | 15 second |
| Answer» A. 1 second | |
| 475. |
Rise and fall method is used in. |
| A. | profile levelling |
| B. | differential levelling |
| C. | check levelling |
| D. | none of these |
| Answer» C. check levelling | |
| 476. |
The plotting of small areas which can be commanded from a single station, is usually done on the plane table by the method of |
| A. | radiation |
| B. | intersection |
| C. | traversing |
| D. | resection |
| Answer» A. radiation | |
| 477. |
In the surveying telescopes, cross hairs are fitted in |
| A. | centre of the telescope |
| B. | optical centre of the eye piece |
| C. | front of the eye piece |
| D. | front of the objective |
| Answer» C. front of the eye piece | |
| 478. |
A line normal to the plumb line at all points is known as |
| A. | horizontal line |
| B. | vertical line |
| C. | level line |
| D. | line of collimation |
| Answer» C. level line | |
| 479. |
A back sight indicates the |
| A. | shifting |
| B. | setting up |
| C. | height |
| Answer» B. setting up | |
| 480. |
in measuring horizontal angles, the theodolite should be turned |
| A. | clockwise from the forward station to the back station |
| B. | clockwise from the back station to the forward station |
| C. | anticlockwise from the forward station to the back station |
| D. | anticlockwise from the back station to the forward station |
| Answer» B. clockwise from the back station to the forward station | |
| 481. |
According to Lehman's rule of plane tabling |
| A. | the distance to the point sought from each of the three rays is proportional to the distance of the three known points from the instrument station |
| B. | when the instrument station is outside the great circle, the point sought is always on the same side of the ray drawn to the most distant point as the intersection of the other two rays |
| C. | when looking in the direction of the reference points, the point sought is on the same side of each of the three rays |
| D. | all of the above |
| Answer» D. all of the above | |
| 482. |
The brightness of the image |
| A. | is directly proportional to |
| B. | is inversely proportional to |
| C. | varies directly as the square of |
| D. | varies inversely as the square of |
| Answer» D. varies inversely as the square of | |
| 483. |
An angle between the inclined line of sight and the horizontal is called |
| A. | direct angle |
| B. | vertical angle |
| C. | horizontal angle |
| D. | deflection angle |
| Answer» B. vertical angle | |
| 484. |
The longest of the chain lines used in making a survey is generally regarded as a base line. |
| A. | Agree |
| B. | Disagree |
| Answer» A. Agree | |
| 485. |
The line of collimation must be parallel to the horizontal axis. |
| A. | Yes |
| B. | No |
| Answer» B. No | |
| 486. |
The horizon 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» D. half silvered and half unsilvered | |
| 487. |
In a prismatic compass, the zero of the graduated ring is located at |
| A. | north end |
| B. | south end |
| C. | east end |
| D. | west end |
| Answer» B. south end | |
| 488. |
In tachcometric method of setting out a curve, no chain or tape is used. |
| A. | True |
| B. | False |
| Answer» A. True | |
| 489. |
The axis of bubble tube must be perpendicular to the vertical axis. |
| A. | Right |
| B. | Wrong |
| Answer» A. Right | |
| 490. |
When the length of offset is 20 m, it is called |
| A. | short |
| B. | long |
| Answer» B. long | |
| 491. |
When the centres of the arcs lie on the opposite sides of the common tangent at the junction of the two curves, it is known as a |
| A. | simple curve |
| B. | vertical curve |
| C. | compound curve |
| D. | reverse curve |
| Answer» D. reverse curve | |
| 492. |
The contour interval |
| A. | should be constant |
| B. | need not be constant |
| Answer» A. should be constant | |
| 493. |
When several contours coincide, it indicates |
| A. | a vertical cliff |
| B. | a valley |
| C. | a ridge |
| Answer» A. a vertical cliff | |
| 494. |
The instrument, belonging to a class of reflecting instrument, is |
| A. | line ranger |
| B. | box sextent |
| C. | prismatic compass |
| D. | all of these |
| Answer» D. all of these | |
| 495. |
The positive error makes the measured distance |
| A. | less than |
| B. | more than |
| Answer» B. more than | |
| 496. |
The object of introducing a transition curve at each end of the circular curve is |
| A. | to obtain a gradual increase of curvature from zero at the tangent point to the specified quantity at the junction of the transition curve with the circular curve |
| B. | to provide a satisfactory means of obtaining a gradual increase of super-elevation from zero on the tangent point to the specified amount on the main circular curve |
| C. | to accomplish gradually the transition from the tangent to the circular curve and from the circular curve to the tangent |
| D. | all of the above |
| Answer» D. all of the above | |
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