Surveying
The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is

f/H cos ½θ
f/H
f/H sec θ
f sec θ/H

ANSWER DOWNLOAD EXAMIANS APP

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

ANSWER DOWNLOAD EXAMIANS APP

Surveying
The meridian of a place is

A semi-circle which passes through the place and is terminated at the poles
A great circle passing through the place and the poles
A great circle whose plane is perpendicular to the axis of rotation and it also passes through the place
An arc of the great circle which passes through the place and is perpendicular to the equator

ANSWER DOWNLOAD EXAMIANS APP