Surveying
Right ascension of a heavenly body is its equatorial angular distance measured

Westward from the first point of Libra
Eastward from the first point of Libra
Westward from the first point of Aeries
Eastward from the first point of Aeries

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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 levelThe correct answer is

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

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