Surveying
To have greatest coverage of the area, the type of photography used, is

None of these
Low oblique
High oblique
Vertical

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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

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

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