Surveying
If α, H, A and δ be the altitude, hour angle, azimuth and declination of a circumpolar star at its elongation, in latitude λ, the following relation holds good

cos H = tan λ/tan δ
sin A = cos δ/cos λ
All listed here
sin α = sin λ/sin δ

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Which of the following errors is not eliminated by the method of repetition of horizontal angle measurement ?

error due to inaccurate graduation
error due to wrong adjustment of line of collimation and trunnion axis
error due to eccentricity of verniers
error due to displacement of station signals

ANSWER DOWNLOAD EXAMIANS APP

Surveying
The First Point of Aeries

Is located near the very conspicuous rectangle of stars in the constellations of Pegasus and Andromeda
Is usually denoted by the Greek letter ?
Is the point in the celestial sphere where zero meridian crosses the celestial equator
All listed here

ANSWER DOWNLOAD EXAMIANS APP