Surveying Local attraction in compass surveying may exist due to 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 incorrect levelling of the magnetic needle ANSWER DOWNLOAD EXAMIANS APP
Surveying The permissible error in chaining for measurement with chain on rough or hilly ground is 1 in 100 1 in 500 1 in 250 1 in 1000 1 in 100 1 in 500 1 in 250 1 in 1000 ANSWER DOWNLOAD EXAMIANS APP
Surveying If E is the spherical excess and R the radius of the earth, the surface area of the triangle, is πR²E/360° πR²E/180° πR²E/270° πR²E/90° πR²E/360° πR²E/180° πR²E/270° πR²E/90° ANSWER DOWNLOAD EXAMIANS APP
Surveying Which of the following methods of offsets involves less measurement on the ground? all involve equal measurement on the ground method of oblique offsets method of perpendicular offsets method of ties all involve equal measurement on the ground method of oblique offsets method of perpendicular offsets method of ties ANSWER DOWNLOAD EXAMIANS APP
Surveying α and β are the angles subtended by a point of elevation h at their air station with respective plumb points. Photo scale and focal length of the lens being ‘S’ and ‘f’ respectively. Parallax displacement of the point due to relief, is h tan α/S h tan β/S h (tan α - tan β)/S h (tan α + tan β)/S h tan α/S h tan β/S h (tan α - tan β)/S h (tan α + tan β)/S ANSWER DOWNLOAD EXAMIANS APP
Surveying Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel 0.6 0.4 0.24 0.36 0.6 0.4 0.24 0.36 ANSWER DOWNLOAD EXAMIANS APP
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