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- Question
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.
- Correct Answer
- all the above.
- 1. 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
- 2. Diurnal variation of magnetic declination is
Options- A. greater at equator than nearer the poles
- B. less at equator than nearer the poles
- C. less in summer than in winter
- D. same at all latitudes and during different months. Discuss
- 3. Pick up the correct statement from the following :
Options- A. in the earth's magnetic field, a magnetic needle rests in magnetic meridian
- B. the angle between the true meridian and the magnetic meridian is called magnetic variation
- C. one end of the magnetic needle supported at its centre of gravity tends to dip down towards the. nearer magnetic pole of the earth
- D. the magnet properly pivoted is balanced by means of riding weight movable along the needle
- E. all the above. Discuss
- 4. The true meridian of a place is the line in which earth's surface is intersected by a plane through
Options- A. east and west points
- B. zenith and nadir points
- C. north and south geographical poles
- D. north and south magnetic poles. Discuss
- 5. The bubble tube is nearly filled with
Options- A. alcohol or chloroform
- B. a liquid which is very mobile
- C. a liquid having low freezing point
- D. all the above. Discuss
- 6. 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
- 7. 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
- 8. 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
- 9. 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. Discuss
- 10. 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
Surveying problems
Search Results
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: less at equator than nearer the poles
Correct Answer: all the above.
Correct Answer: north and south geographical poles
Correct Answer: all the above.
Correct Answer: decreases with increase of slope
Correct Answer: 20 mm.
Correct Answer: measuring angle of slope
Correct Answer: resection.
Correct Answer: point of commencement
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