Surveying Local attraction in compass surveying may exist due to loss of magnetism of the needle presence of magnetic substances near the instrument incorrect levelling of the magnetic needle friction of the needle at the pivot loss of magnetism of the needle presence of magnetic substances near the instrument incorrect levelling of the magnetic needle friction of the needle at the pivot ANSWER DOWNLOAD EXAMIANS APP
Surveying Transit rule of adjusting the consecutive coordinates of a traverse is used where linear and angular measurements of the traverse are of equal accuracy All of these linear measurements are more accurate than angular measurements angular measurements are more accurate than linear measurements linear and angular measurements of the traverse are of equal accuracy All of these linear measurements are more accurate than angular measurements angular measurements are more accurate than linear measurements ANSWER DOWNLOAD EXAMIANS APP
Surveying If ‘δ’ is the declination of the star and ‘φ’ is the latitude of the observer then the hour angle of the star at elongation is given by cos H = tan φ . cot δ None of these tan H = tan φ . cot δ sin H = tan φ . cot δ cos H = tan φ . cot δ None of these tan H = tan φ . cot δ sin H = tan φ . cot δ ANSWER DOWNLOAD EXAMIANS APP
Surveying If α is the observed altitude, the refraction correction in seconds, is 58" tan α 58" cot α 58 cos α 58 sin α 58" tan α 58" cot α 58 cos α 58 sin α ANSWER DOWNLOAD EXAMIANS APP
Surveying The net ground area of a vertical photograph 20 cm × 20 cm on scale 1 : 10,000 having overlaps 60% and 30%, is 0.64 sq km 0.56 sq km 0.50 sq km 0.60 sq km 0.64 sq km 0.56 sq km 0.50 sq km 0.60 sq km ANSWER DOWNLOAD EXAMIANS APP
Surveying The angular distance of a heavenly body from the equator, measured along its meridian, is called Altitude Declination Zenith distance Co-latitude Altitude Declination Zenith distance Co-latitude ANSWER DOWNLOAD EXAMIANS APP
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