Surveying
G.M.T. corresponding to given mean time, equals

L.M.T. - West longitude in time
L.M.T. + East longitude in time
L.M.T. - East longitude in time
None of these

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Surveying
Bowditch rule is applied to

None of these
a closed traverse for adjustment of closing error
an open traverse for graphical adjustment
determine the effect of local attraction

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Surveying
Refraction correction

has no effect on curvature correction
adds to the curvature correction
partially eliminates curvature correction
completely eliminates curvature correction

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