Surveying
The process of turning the telescope about the vertical axis in horizontal plane is known as

plunging
reversing
swinging
transiting

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Surveying
Sidereal day

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

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Surveying
In the prismatic compass

the line of the sight does not move with the box
the magnetic needle and graduated circle do not move with the box
the magnetic needle moves with the box
the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction

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