Surveying Mcqs
This set of Civil Engineering Multiple Choice Questions & Answers (MCQs) focuses on “ Surveying ”. These Mcqs are chosen from a collection of most authoritative and best reference books on Civil Engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Surveying comprehensively.
17. The graduations in prismatic compass_____________?
Are inverted
Are upright
Run clockwise having 0° at south
Run clockwise having 0° at north
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18. The process of turning the telescope about the vertical axis in horizontal plane is known as______________?
Transiting
Reversing
Plunging
Swinging
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19. Which of the following is not the function of levelling head ?
To support the main part of the instrument
To attach the theodolite to the tripod
To provide a means for leveling the theodolite
None of the above
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20. A telescope is said to be inverted if its______________?
Vertical circle is to its right and the bubble of the telescope is down
Vertical circle is to its right and the bubble of the telescope is up
Vertical circle is to its left and the bubble of the telescope is down
Vertical circle is to its left and the bubble of the telescope is up
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21. Size of a theodolite is specified by________________?
The length of telescope
The diameter of vertical circle
The diameter of lower plate
The diameter of upper plate
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22. If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated____________?
On its outer spindle with a relative motion between the vernier and graduated scale of lower plate
On its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate
On its inner spindle with a relative motion between the vernier and the graduated scale of lower plate
On its inner spindle without a relative motion between the vernier and the graduated scale of lower plate
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23. For which of the following permanent adjustments of theodolite, the spire test is used ?
Adjustment of plate levels
Adjustment of line of sight
Adjustment of horizontal axis
Adjustment of altitude bubble and vertical index frame
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24. Which of the following errors is not eliminated by the method of repetition of horizontal angle measurement ?
Error due to eccentricity of verniers
Error due to displacement of station signals
Error due to wrong adjustment of line of collimation and trunnion axis
Error due to inaccurate graduation
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25. The cross hairs in the surveying telescope are placed_____________?
Midway between eye piece and objec¬tive lens
Much closer to the eye-piece than to the objective lens
Much closer to the objective lens than to the eye piece
Anywhere between eye-piece and objective lens
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26. The adjustment of horizontal cross hair is required particularly when the instrument is used for_____________?
Leveling
Prolonging a straight line
Measurement of horizontal angles
All of the above
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27. The error due to eccentricity of inner and outer axes can be eliminated by________________?
Reading both verniers and taking the mean of the two
Taking both face observations and taking the mean of the two
Double sighting
Taking mean of several readings distributed over different portions of the graduated circle
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28. In an internal focussing type of telescope, the lens provided is_______________?
Concave
Convex
Plano-convex
Plano-concave
29. The rise and fall method of levelling provides a complete check on_______________?
Backsight
Intermediate sight
Foresight
All of the above
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30. A’level line’is a______________?
Horizontal line
Line parallel to the mean spheriodal surface of earth
Line passing through the center of cross hairs and the center of eye piece
Line passing through the objective lens and the eye-piece of a dumpy or tilting level
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