Surveying problems
- 1. The branch of surveying in which both horizontal and vertical positions of a point, are determined by making instrumental observations, is known
Options- A. tacheometry
- B. tachemetry
- C. telemetry
- D. all the above. Discuss
Correct Answer: all the above.
- 2. The latitude of a traverse leg is obtained by multiplying its length by
Options- A. tangent of its reduced bearing
- B. sign of its reduced bearing
- C. cosine of its reduced bearing
- D. cosecant of its reduced bearing. Discuss
Correct Answer: cosine of its reduced bearing
- 3. Probable systematic 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. ± 0.2 k mm
- C. ± 0.1 k
- D. 0.2 k mm. Discuss
Correct Answer: 0.2 k mm.
- 4. If the rate of gain of radial acceleration is 0.3 m per sec3 and full centrifugal ratio is developed. On the curve the ratio of the length of the transition curve of same radius on road and railway, is
Options- A. 2.828
- B. 3.828
- C. 1.828
- D. 0.828. Discuss
Correct Answer: 2.828
- 5. True meridian of different places
Options- A. converge from the south pole to the north pole
- B. converge from the north pole to the south pole
- C. converge from the equator to the poles
- D. run parallel to each other. Discuss
Correct Answer: converge from the equator to the poles
- 6. For setting out a simple curve, using two theodolites.
Options- A. offsets from tangents are required
- B. offsets from chord produced are required
- C. offsets from long chord are required
- D. deflection angles from Rankine's formula are required
- E. none of these. Discuss
Correct Answer: none of these.
- 7. Orientation of a plane table by solving two point problem is only adopted when
Options- A. saving of time is a main factor
- B. better accuracy is a main factor
- C. given points are inaccessible
- D. none of these. Discuss
Correct Answer: given points are inaccessible
- 8. Measuring with a 30 m chain, 0.01 m too short, introduces
Options- A. positive compensating error
- B. negative compensating error
- C. positive cumulative error
- D. negative cumulative error. Discuss
Correct Answer: positive cumulative error
- 9. A uniform slope was measured by the method of stepping. If the difference in level between two points is 1.8 m and the slope distance between them is 15 m, the error is approximately equal to
Options- A. cumulative, + 0.11 m
- B. compensating, ± 0.11 m
- C. cumulative, - 0.11 m
- D. none of these Discuss
Correct Answer: cumulative, + 0.11 m
- 10. Keeping the instrument height as 1
m, length of staff 4 m, the up gradient of the ground 1 in 10, the sight on the up slope must be less than
Options- A. 25 cm
- B. 20 m
- C. 45 m
- D. 10 m Discuss
Correct Answer: 45 m
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