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

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

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Surveying
The cross hairs in the surveying telescope are placed

much closer to the eye-piece than to the objective lens
much closer to the objective lens than to the eye piece
anywhere between eye-piece and objective lens
midway between eye piece and objec-tive lens

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Surveying
The meridian of a place is

A semi-circle which passes through the place and is terminated at the poles
A great circle whose plane is perpendicular to the axis of rotation and it also passes through the place
A great circle passing through the place and the poles
An arc of the great circle which passes through the place and is perpendicular to the equator

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