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WorksheetsCIVILWAR (surveyor)- DAY 29 - (Surveying- INTRODUCTION PART
Total questions: 10
Worksheet time: 5mins
Surveying primarily concerns measurements in which plane, while levelling concerns measurements in which plane?
Surveying—vertical; Levelling—horizontal
Surveying—horizontal; Levelling—vertical
Both are horizontal
Both are vertical
A drawing that shows horizontal measurements and details is called a —
Section
Elevation
Plan/Map
Profile
Which statement best distinguishes a plan from a map?
Plan is smaller scale; map is larger scale
Plan and map are identical in scale
Plan generally uses larger scale; map generally uses smaller scale
Plan is only for buildings; map only for continents
The primary object of surveying is to prepare a —
Triangulation net
Levelling book
Plan or map of the area
Contour gradient
As per the given criterion, a survey is treated as geodetic (and not plane) when the area exceeds —
10 km²
100 km²
260 km² (≈ 100 sq. miles)
1000 km²
For every 195.5 km² of area, the difference between the sum of angles of a spherical triangle and a plane triangle is —
1 minute
1 second
10 seconds
Negligible (exactly zero)
Which situation most strongly indicates that the plane-survey assumption may be inadequate and geodetic treatment is needed?
A 5 km² campus requiring 1:500 plans
A 30 km road alignment with frequent bench marks
A 300 km² regional survey for base mapping
A single building layout in a city block
The difference between geodetic and plane measurement of length increases with line length. Which pairing is consistent with the provided data?
18.2 km → 30 cm; 54.3 km → 10 cm; 91 km → 50 cm
18.2 km → 10 cm; 54.3 km → 30 cm; 91 km → 50 cm
18.2 km → 50 cm; 54.3 km → 30 cm; 91 km → 10 cm
All three are equal for long lines
Which combined statement is fully correct?
Plane survey ignores curvature for small areas; output is plan/map
Plane survey uses spherical trigonometry; output is section
Geodetic survey is only for vertical control; output is levelling book
Geodetic survey ignores curvature; output is plan only
You must produce a large-scale drawing (1:500) of a 4 km × 4 km industrial estate and a small-scale overview (1:50,000) of a 400 km² district. Which pairing is most appropriate?
Estate: geodetic; District: plane
Estate: plane; District: geodetic
Estate: levelling only; District: plane
Estate: photogrammetry only; District: levelling only
