Surveying
When a star is between the pole and the horizon, the relationship between latitude (λ), zenith distance (z) and declination δ, is

θ = (z + δ) - 180°
θ = δ - z
θ = 180° - (z + δ)
θ = z + δ

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

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Dumpy level is most suitable when

the instrument is to be shifted frequently
All of these
many readings are to be taken from a single setting of the instrument
fly levelling is being done over long distance

ANSWER DOWNLOAD EXAMIANS APP