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- Question
If the length of a chain line along a slope of ?° is l, the required slope correction is
Options- A. 2l cos2 ?/2
- B. 2l sin2 ?/2
- C. l tan2 ?/2
- D. l cos2 ?/2.
- Correct Answer
- 2l sin2 ?/2
- 1. The boundary of water of a still lake, represents
Options- A. level surface
- B. horizontal surface
- C. contour line
- D. a concave surface. Discuss
- 2. Pick up the correct statement from the following :
Options- A. mistakes arise from inattention, inexperience or carelessness
- B. systematic errors persist and have regular effects in the survey performances
- C. accidental errors occur inspite of every precaution is taken
- D. all the above. Discuss
- 3. Pick up the correct statement from the following :
Options- A. it is difficult to eliminate an error completely at first trial
- B. instability of the instrument makes it almost impossible to adjust it satisfactorily
- C. adjustment screws must be left bearing firmly but should never be forced
- D. all the above. Discuss
- 4. The angle of intersection of a contour and a ridge line, is
Options- A. 30°
- B. 45°
- C. 60°
- D. 90°. Discuss
- 5. In setting up a plane table at any station
Options- A. levelling is done first
- B. centering is done first
- C. both levelling and centering are done simultaneously
- D. orientation is done first. Discuss
- 6. Ranging is an operation of
Options- A. reconnaissance
- B. judging the distance
- C. determination of slope
- D. establishing intermediate points between terminals. Discuss
- 7. The staff intercept will be
Options- A. greater farther off the staff is held
- B. smaller, farther off the staff is held
- C. smaller, nearer the staff is held
- D. same, wherever the staff is held. Discuss
- 8. Horizontal distances obtained tacheometerically are corrected for
Options- A. slope correction
- B. temperature correction
- C. refraction and curvature correction
- D. all the above. Discuss
- 9. In tangential tacheometry, an ordinary level staff is used
Options- A. leaning towards the instrument for inclined sights upward
- B. leaning away from the instrument for inclined sights downwards
- C. vertical in all cases
- D. none of these. Discuss
- 10. Probable accidental error in precise levelling as recommended by International Geodetic Association, should not exceed
(where k is in kilometers.)
Options- A. ± 0.1 k mm
- B. ± 0.5 k mm
- C. ± 1 k mm
- D. ± 2 k mm
- E. ± 5 k mm. Discuss
Surveying problems
Search Results
Correct Answer: contour line
Correct Answer: all the above.
Correct Answer: all the above.
Correct Answer: 90°.
Correct Answer: both levelling and centering are done simultaneously
Correct Answer: establishing intermediate points between terminals.
Correct Answer: smaller, farther off the staff is held
Correct Answer: refraction and curvature correction
Correct Answer: vertical in all cases
Correct Answer: ± 1 k mm
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