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- Question
The defect of a lens whereby rays of white light proceeding from a point get dispersed into their components and conveyed to various foci, forming a blurred and coloured image is known as
Options- A. chromatic aberration
- B. spherical aberration
- C. astigmatism
- D. coma.
- Correct Answer
- chromatic aberration
- 1. Locating the position of a plane table station with reference to three known points, is known as
Options- A. intersection method
- B. radiation method
- C. resection method
- D. three point problem. Discuss
- 2. If the whole circle bearing of a line is 270°, its reduced bearing is
Options- A. N 90° W
- B. S 90° W
- C. W 90°
- D. 90° W. Discuss
- 3. Under ordinary conditions, the precision of a theodolite traverse is affected by
Options- A. systematic angular errors
- B. accidental linear errors
- C. systematic linear errors
- D. accidental angular errors. Discuss
- 4. In a perfect prismatic compass
Options- A. magnetic axis and geometric axis of the needle coincide
- B. ends of the needle and pivot are in same vertical and horizontal planes
- C. pivot is vertically over the centre of the graduated circle
- D. needle is always kept sensitive
- E. all the above. Discuss
- 5. If deflection angles are measured in a closed traverse, the difference between the sum of the right-hand and that of the left hand angles should be equal to
Options- A. 0°
- B. 90°
- C. 180°
- D. 360° Discuss
- 6. Number of links per metre length of a chain are
Options- A. 2
- B. 5
- C. 8
- D. 10
- E. 20 Discuss
- 7. If ? is the angle of deflection of a simple curve of radius R, the distance between the mid-point of the curve and long chord, is
Options- A.
- B.
- C.
- D.
.
Discuss
- 8. The method generally preferred to for contouring an undulating area, is
Options- A. chain surveying
- B. plane table surveying
- C. tacheometrical surveying
- D. compass surveying. Discuss
- 9. If the declination of the needle is 10° W
Options- A. each of the whole circle reckoning has to be micros by 10°
- B. in the quadrantal method, the correction is positive in the 1st and 3rd quadrants
- C. in the quadrantal method, the corrections is negative in 2nd and 4th quadrants
- D. all the above. Discuss
- 10. The back staff reading on a B.M. of R.L. 500.000 m is 2.685 m. If foresight reading on a point is 1.345 m, the reduced level of the point, is
Options- A. 502.685 m
- B. 501.345 m
- C. 501.340 m
- D. 504.030 m
- E. 502.585 m. Discuss
Surveying problems
Search Results
Correct Answer: three point problem.
Correct Answer: W 90°
Correct Answer: systematic linear errors
Correct Answer: all the above.
Correct Answer: 360°
Correct Answer: 5
Correct Answer:
. Correct Answer: tacheometrical surveying
Correct Answer: all the above.
Correct Answer: 501.340 m
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