Surveying
In the quadrantal bearing system, a whole circle bearing of 293° 30′ can be expressed as

W23°30’N
S113°30’N
N23°30’W
N66°30’W

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Surveying
Sidereal day

Is the period of time taken by the earth in making a complete rotation with reference to stars
Is divided into the conventional hours, minutes and seconds
Is slightly shorter than an ordinary solar day
All listed here

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Surveying
Spring tides are caused when

Solar tidal force acts opposite to lunar tidal force
Sun and moon are in line with earth
None of these
Solar tidal force and lunar tidal force both coincide

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