Surveying Polaris is usually observed for the determination of the azimuth when it is At elongation Neither at culmination nor at elongation Either at culmination or at elongation At culmination At elongation Neither at culmination nor at elongation Either at culmination or at elongation At culmination ANSWER DOWNLOAD EXAMIANS APP
Surveying If a star whose declination is 60° N culminates at zenith, its altitude at the lower culmination, is 20° 40° 30° 10° 20° 40° 30° 10° ANSWER DOWNLOAD EXAMIANS APP
Surveying The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is 1 : 30,000 1 : 15,000 1 : 20,000 1 : 10,000 1 : 30,000 1 : 15,000 1 : 20,000 1 : 10,000 ANSWER DOWNLOAD EXAMIANS APP
Surveying A metallic tape is made of steel cloth and wires linen invar steel cloth and wires linen invar ANSWER DOWNLOAD EXAMIANS APP
Surveying For accurate work, the steel band should always be used in preference to chain because the steel band can be easily repaired in the field is practically inextensible and is not liable to kinks when in use is lighter than chain is easier to handle can be easily repaired in the field is practically inextensible and is not liable to kinks when in use is lighter than chain is easier to handle ANSWER DOWNLOAD EXAMIANS APP
Surveying The distance between the projection centre and the photograph, is called Isocentric distance Principal distance Principal line Focal length Isocentric distance Principal distance Principal line Focal length ANSWER DOWNLOAD EXAMIANS APP
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