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Surveying

Surveying
The normal longitudinal overlap is generally kept

0.6
0.75
0.7
0.5

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Surveying
The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The declination of the star, is

50°
70°
80°
60°

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Surveying
Which of the following methods of contouring is most suitable for a hilly terrain?

Direct method
Square method
Tachometric method
Cross-sections method

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Surveying
In a truly vertical photograph,

Plumb point coincides the principal point
All listed here
Principal point coincides the isocenter
Iso-centre coincides the plumb point

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Surveying
Benchmark is established by

spirit levelling
hypsometry
barometric levelling
trigonometrical levelling

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Surveying
The following points form a pair of homologous points:

All listed here
Photo isocenter and ground isocenter
Photo plumb point and ground plumb point
Photo principal point and ground principal point

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