Surveying Local attraction in compass surveying may exist due to incorrect levelling of the magnetic needle loss of magnetism of the needle presence of magnetic substances near the instrument friction of the needle at the pivot incorrect levelling of the magnetic needle loss of magnetism of the needle presence of magnetic substances near the instrument friction of the needle at the pivot ANSWER DOWNLOAD EXAMIANS APP
Surveying If the length of a chain is found to be short on testing, it can be adjusted by removing one or more small circular rings All of these straightening the links closing the joints of the rings if opened out removing one or more small circular rings All of these straightening the links closing the joints of the rings if opened out ANSWER DOWNLOAD EXAMIANS APP
Surveying To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30,000, with a camera of 30 cm focal length, the flying height is 5000 m 7000 m 6000 m 4000 m 5000 m 7000 m 6000 m 4000 m ANSWER DOWNLOAD EXAMIANS APP
Surveying The size of a plane table is 300 mm × 450 mm 450 mm × 600 mm 600 mm × 750 mm 750 mm × 900 mm 300 mm × 450 mm 450 mm × 600 mm 600 mm × 750 mm 750 mm × 900 mm ANSWER DOWNLOAD EXAMIANS APP
Surveying While making astronomical observations, the observer is mainly concerned with The direction of the star from the instrument The direction of the vertical, the axis of rotation of the instrument The direction of the poles of the celestial sphere All listed here The direction of the star from the instrument The direction of the vertical, the axis of rotation of the instrument The direction of the poles of the celestial sphere All listed here ANSWER DOWNLOAD EXAMIANS APP
Surveying If the R.L. of a B.M. is 100.00 m, the back- sight is 1.215 m and the foresight is 1.870 m, the R.L. of the forward station is 99.345 m 101.870 m 100.655 m 100.345 m 99.345 m 101.870 m 100.655 m 100.345 m ANSWER DOWNLOAD EXAMIANS APP
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