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Surveying

Surveying
The maximum tolerance in a 20 m chain is

±5 mm
±8 mm
±3 mm
±2 mm

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Surveying
For which of the following permanent adjustments of theodolite, the spire test is used ?

adjustment of line of sight
adjustment of altitude bubble and vertical index frame
adjustment of plate levels
adjustment of horizontal axis

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Surveying
Check lines (or proof lines) in Chain Surveying, are essentially required

To plot the chain lines
To indicate the accuracy of the survey work
To plot the offsets
To increase the out-turn

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Surveying
In the double application of principle of reversion, the apparent error is

equal to true error
four times the true error
two times the true error
half the true error

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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

70°
60°
50°
80°

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Surveying
For any star to be a circumpolar star, its

Hour angle must be 180°
Declination must be 90°
Declination must be 0°
Distance from the pole must be less than the latitude of the observer

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MORE MCQ ON Surveying

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