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WorksheetsDay 64-Nov 27-worksheet-Diploma-plane table surveying
Total questions: 15
Worksheet time: 10mins
The fundamental principle of plane table surveying is —
Triangulation
Parallelism
Orientation
Levelling
The method used for locating inaccessible points such as rivers or broken boundaries is —
(a)
Which method is quick and accurate for solving the three-point problem?
Mechanical method
Bessel’s method
Tracing paper method
Trial and error method
Which instrument is used to mark the direction of magnetic meridian on the plane table?
(a)
The rays drawn from an unplotted station towards known plotted points in resection are called
(a)
Intersection method in plane table surveying is most suitable for inaccessible points.
True
False
The process of putting the plane table into a fixed direction so that lines on plan remain parallel to lines on the ground is called what?
(a)
The process of setting up the instrument exactly over the ground point is known as what?
(a)
In plane table survey, which method is the most accurate for orientation?
Back sighting
By compass
By estimation
By alignment
In the method of an intersection, only one linear measurement is made
True
False
The triangle formed by joining the three ground points is called what?
Great triangle
Right triangle
Isosceles triangle
Small triangle
When resectors fail to meet at a point due to wrong orientation, they form a ________.
Triangle of error
Circle of confusion
Line of sight
Square of accuracy
Multiple–select: Which accessories are used for centering the plane table? Select all that apply.
U-frame
Plumbing fork with bob
Spirit level
Trough compass
Match the following
Telescopic alidade
For inclined long sights
Plumbing fork with bob
Used for centering
Spirit level
Used for levelling
Trough compass
Used for orientation
Plan table surveying uses the methodology of traversing
True
False
