Discussion
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- Question
A lens or combination of lenses in which the following defect is completely eliminated is called aplanatic
Options- A. spherical aberration
- B. chromatic aberration
- C. coma
- D. astigmatism.
- Correct Answer
- spherical aberration
- 1. Tilt of the staff in stadia tacheometry increases the intercept if it is
Options- A. away from the telescope pointing down hill
- B. towards the telescope pointing up-hill
- C. away from the telescope pointing up-hill
- D. none of these. Discuss
- 2. The 10 mm markings on a levelling staff placed at 20 m are separated by
Options- A.
radian - B.
radian - C.
radian - D.
radian.
Discuss
- 3. If D is the degree of the curve of radius R, the exact length of its specified chord, is
Options- A. radius of the curve x sine of half the degree
- B. diameter of the curve x sine of half the degree
- C. diameter of the curve x cosine of half the degree
- D. diameter of the curve x tangent of half the degree. Discuss
- 4. In a telescope the object glass of focal length 14 cm, is located at 20 cm from the diaphragm. The focussing lens is midway between them when a staff 16.50 m away is focussed. The focal length of the focussing lens, is
Options- A. 5.24 cm
- B. 6.24 cm
- C. 7.24 cm
- D. 8.24 cm Discuss
- 5. If + 0.8% grade meets - 0.7% grade and the rate of change of grade for 30 m distance is 0.05, the length of the vertical curve will be
Options- A. 600 m
- B. 700 m
- C. 800 m
- D. 900 m
- E. 1000 m Discuss
- 6. If the chain line which runs along N-S direction is horizontal and the ground in E-W direction is sloping
Options- A. it is possible to set offsets correctly on east side
- B. it is possible to set offsets correctly on east side
- C. it is not possible to set offsets correctly on west side
- D. it is possible to set offsets correctly on both sides. Discuss
- 7. The properties of autogenous curve for automobiles are given by
Options- A. true spiral
- B. cubic parabola
- C. Bernoulli's Lemniscate
- D. clothoid spiral. Discuss
- 8. To orient a plane table at a point with two inaccessible points, the method generally adopted, is
Options- A. intersection
- B. resection
- C. radiation
- D. two point problem. Discuss
- 9. In precision theodolite traverse if included angles are read twice and the mean reading accepted using both verniers having a least count of 30". Assuming the instrument to be in perfect adjustment, linear measurements correct to 6 mm per 30 metre tape duly corrected for temperature, slope and sag, the angular error of closure not to exceed (where n is the number of traverse legs)
Options- A. 50" n
- B. 30" n
- C. 60" n. Discuss
- 10. Pick up the correct statement from the following :
Options- A. with both handles in his left hand, the chain man throws out the chain with his right hand and the second chain man assists him to free it from knots
- B. the follower of the chaining operation should be more experienced than the leader
- C. at the end of the tenth chain length, the two chain men meet and the ten arrows are handed over to the leader
- D. all the above. Discuss
Surveying problems
Search Results
Correct Answer: away from the telescope pointing up-hill
Correct Answer:
radian Correct Answer: diameter of the curve x sine of half the degree
Correct Answer: 7.24 cm
Correct Answer: 900 m
Correct Answer: it is possible to set offsets correctly on both sides.
Correct Answer: Bernoulli's Lemniscate
Correct Answer: two point problem.
Correct Answer: 50" n
Correct Answer: all the above.
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