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This set of Surveying Multiple Choice Questions & Answers (MCQs) focuses on Surveying Set 5

Q1 | In chain surveying tie lines are primarily provided

- to check the accuracy of the survey
- to take offsets for detail survey
- to avoid long offsets from chain lines
- to increase the number of chain lines.

Q2 | If f1 and f2 are the distances from the optical center of a convex lens of focal length f to conjugate two points P1 and P2 respectively, the following relationship holds good

- f = f1 + f2
- f = (f1 + f2)
- 1/ f1 + 1/ f2
- none of these.

Q3 | Closed contours of decreasing values towards their center, represent

- a hill
- a depression
- a saddle or pass
- a river bed.

Q4 | An imaginary line joining the points of equal elevation on the surface of the earth, represents

- contour surface
- contour gradient
- contour line
- level line

Q5 | In chain surveying field work is limited to

- linear measurements only
- angular measurements only
- both linear and angular measurements
- all the above

Q6 | In quadrantal bearing system, back bearing of a line may be obtained from its forward bearing, by

- adding 180°, if the given bearing is less than 180°
- subtracting 180°, if the given bearing, is more than 180°
- changing the cardinal points, i.e. substituting N for S and E for W and vice-versa
- none of these.

Q7 | Pick up the method of surveying in which field observations and plotting proceedsimultaneously from the following

- chain surveying
- compass surveying
- plan table surveying
- tacheometric surveying.

Q8 | 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

- correctly focused
- not correctly focused
- said to have parallax
- free from parallax.

Q9 | True meridians are generally preferred to magnetic meridians because

- these converge to a point
- these change due to change in time
- these remain constant.
- None of these.

Q10 | The main principle of surveying is to work

- from part to the whole
- from whole to the part
- from higher level to the lower level
- from lower level to higher level.

Q11 | Geodetic surveying is undertaken

- for production of accurate maps of wide areas
- for developing the science of geodesy
- making use of most accurate instruments and methods of observation
- all the above.

Q12 | The best method of interpolation of contours, is by

- estimation
- graphical means
- computation
- all of these.

Q13 | The conventional sign shown in below figure represents a

- bridge carrying railway below road
- bridge carrying road below railway
- bridge carrying road and railway at the same level
- a level crossing.

Q14 | A relatively fixed point of known elevation above datum, is called

- bench mark
- datum point
- reduced level
- reference point.

Q15 | Cross hairs in surveying telescopes, are fitted

- in the objective glass
- at the center of the telescope
- at the optical center of the eye piece
- in front of the eye piece.

Q16 | On a diagonal scale, it is possible to read up to

- one dimension
- two dimensions
- three dimensions
- Four dimensions.

Q17 | Plotting of inaccessible points on a plane table, is done by

- intersection
- traversing
- radiation
- none of these.

Q18 | Prismatic compass is considered more accurate than a surveyor's compass, because

- it is provided with a better magnetic needle
- it is provided with a sliding glass in the object vane
- its graduations are in whole circle bearings
- it is provided with a prism to facilitate reading of its graduated circle

Q19 | Removal of parallax, may be achieved by focussing

- the objective
- the eye-piece
- the objective and the eye-piece
- none of these.

Q20 | In an internal focusing telescope

- the objective is at a fixed distance from the diaphragm
- the focusing is done by the sliding of a divergent lens.
- the focusing divergent lens is situated at about the middle of the tube
- all the above.

Q21 | Imaginary line passing through points having equal magnetic declination is termed as

- isogon
- agonic line
- isoclinic line
- none of these

Q22 | While measuring a chain line between two stations A and B intervened by a raised ground

- vision gets obstructed
- chaining gets obstructed
- both vision and chaining get obstructed
- all the above.

Q23 | A clinometer is used for

- measuring angle of slope
- correcting line of collimation
- setting out right angles
- defining natural features.

Q24 | The whole circle bearing of a line is 290°. Its reduced bearing is

- N 20° E
- N 20° W
- N 70° W
- S 70° E

Q25 | The reduced bearing of a line is N 87° W. Its whole circle bearing is

- 87°
- 273°
- 93°
- 3°