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Civil Engineering - Surveying

Exercise : Surveying - Section 3
31.
If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as
direct vernier
double vernier
retrograde vernier
simple vernier.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Cross-staff is used for
setting out right angles
measuring contour gradient
taking levels
measuring distances
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
The 'point of curve' of a simple circular curve, is
point of tangency
point of commencement
point of intersection
mid-point of the curve
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
For orientation of a plane table with three points A, B and C, Bessel's drill is
Align b through a and draw a ray towards c, align a through b and draw a ray towards c, finally align c through the point of intersection of the previously drawn rays
Align c through a and draw a ray towards b, align a through c and draw a ray towards b, finally align b through the point of intersection of the previously drawn rays
Align c through b and draw a ray towards a, align b through c and draw a ray towards a, finally align a, through the point of intersection of the previously, drawn rays
In the first two steps any two of the points may be used and a ray drawn towards the third point, which is sighted through the point of intersection of previously drawn rays in the final step.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
The minimum range for sliding the focusing lens in the internal focusing telescope for focusing at all distances beyond 4 m is
5 mm
10 mm
15 mm
20 mm.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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