1.

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. nly (i)
B. oth (i) and (iv)
C. nly (iii)
D. oth (ii) and (iii)
Answer» C. nly (iii)


Discussion

No Comment Found