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- Question
Which one of the following procedures for getting accurate orientation is the most distinctive feature of the art of plane tabling
Options- A. radiation
- B. intersection
- C. traversing
- D. resection.
- Correct Answer
- resection.
- 1. A clinometer is used for
Options- A. measuring angle of slope
- B. correcting line of collimation
- C. setting out right angles
- D. defining natural features. Discuss
- 2. The minimum range for sliding the focusing lens in the internal focusing telescope for focusing at all distances beyond 4 m is
Options- A. 5 mm
- B. 10 mm
- C. 15 mm
- D. 20 mm. Discuss
- 3. The distance between steps for measuring down hill to obtain better accuracy
Options- A. decreases with decrease of slope
- B. increases with increase of slope
- C. decreases with increase of slope
- D. decreases with decrease of weight of the chain. Discuss
- 4. Pick up the correct statement from the following :
Options- A. the lines of sight while observing back sight and fore sight lie in the same horizontal plane
- B. the staff readings are measurements made vertically downwards from a horizontal plane
- C. the horizontal plane with reference to which staff readings are taken, coincides with the level surface through the telescope axis
- D. all the above. Discuss
- 5. For orientation of a plane table with three points A, B and C, Bessel's drill is
Options- A. 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
- B. 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
- C. 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
- D. 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. Discuss
- 6. The 'point of curve' of a simple circular curve, is
Options- A. point of tangency
- B. point of commencement
- C. point of intersection
- D. mid-point of the curve Discuss
- 7. A theodolite is said to be in perfect adjustment if
Options- A. rotation axis is vertical to the transit axis
- B. transit axis is perpendicular to line of collimation
- C. line of collimation sweeps out a vertical plane while the telescope is elevated or depressed
- D. all the above. Discuss
- 8. Simpson's rule for calculating areas states that the area enclosed by a curvilinear figure divided into an even number of strips of equal width, is equal to
Options- A. half the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets, and thrice the sum of the even offsets
- B. one third the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets
- C. one third the width of a strip, multiplied by the sum of two extreme offsets, four times the sum of the remaining odd offsets, and twice the sum of the even offsets
- D. one sixth the width of a strip, multiplied by the sum of the two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets
- E. none of these Discuss
- 9. In reciprocal levelling, the error which is not completely eliminated, is due to
Options- A. earth's curvature
- B. non-adjustment of line of collimation
- C. refraction
- D. non-adjustment of the bubble tube. Discuss
- 10. If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as
Options- A. direct vernier
- B. double vernier
- C. retrograde vernier
- D. simple vernier. Discuss
Surveying problems
Search Results
Correct Answer: measuring angle of slope
Correct Answer: 20 mm.
Correct Answer: decreases with increase of slope
Correct Answer: all the above.
Correct Answer: 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.
Correct Answer: point of commencement
Correct Answer: all the above.
Correct Answer: one third the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets
Correct Answer: refraction
Correct Answer: retrograde vernier
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