Surveying Local attraction in compass surveying may exist due to friction of the needle at the pivot presence of magnetic substances near the instrument loss of magnetism of the needle incorrect levelling of the magnetic needle friction of the needle at the pivot presence of magnetic substances near the instrument loss of magnetism of the needle incorrect levelling of the magnetic needle ANSWER DOWNLOAD EXAMIANS APP
Surveying The maximum error in radial line assumption, is h/H f tan θ h/H f² tan θ h/H f cos θ h/H f² sin θ h/H f tan θ h/H f² tan θ h/H f cos θ h/H f² sin θ ANSWER DOWNLOAD EXAMIANS APP
Surveying If α is the observed altitude, the refraction correction in seconds, is 58 sin α 58" tan α 58" cot α 58 cos α 58 sin α 58" tan α 58" cot α 58 cos α ANSWER DOWNLOAD EXAMIANS APP
Surveying If the distance between the projectors is altered by a movement along X-axis of one projector, The length of the air base is increased The scale of the model is altered All listed here y-parallax is not affected The length of the air base is increased The scale of the model is altered All listed here y-parallax is not affected ANSWER DOWNLOAD EXAMIANS APP
Surveying Which of the following methods of contouring is most suitable for a hilly terrain? Direct method Tachometric method Square method Cross-sections method Direct method Tachometric method Square method Cross-sections method ANSWER DOWNLOAD EXAMIANS APP
Surveying If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be true R.L. None of these more than true R.L. less than true R.L. true R.L. None of these more than true R.L. less than true R.L. ANSWER DOWNLOAD EXAMIANS APP
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