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

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

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Surveying
For a line AB

both (A) and (B) are correct
the forebearing of AB and back bearing of BA differ by 180°
the forebearing of AB and back bearing of AB differ by 180°
none is correct

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