Surveying
The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above

None of these
Equator
Pole
Horizon

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Surveying
If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference toi) altitude bubble on index frameii) altitude bubble on index frame if it is to be used as a leveliii) altitude bubble on telescopeiv) altitude bubble on telescope if it is to be used as a level The correct answer is

both (ii) and (iii)
only (i)
both (i) and (iv)
only (iii)

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Surveying
The First Point of Aeries

Is usually denoted by the Greek letter ?
Is the point in the celestial sphere where zero meridian crosses the celestial equator
Is located near the very conspicuous rectangle of stars in the constellations of Pegasus and Andromeda
All listed here

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