Q89
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
A.
only (i)
B.
both (i) and (iv)
AnswerC.
only (iii)
D.
both (ii) and (iii)
Answer: Option B
Solution
Answer: Option B
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