Surveying problems
- 1. The longitudinal section of the surface of bubble tube is
Options- A. straight
- B. circular
- C. parabolic
- D. elliptic. Discuss
Correct Answer: circular
- 2. The curve composed of two arcs of different radii having their centres on the opposite side of the curve, is known
Options- A. a simple curve
- B. a compound curve
- C. a reverse curve
- D. a vertical curve. Discuss
Correct Answer: a reverse curve
- 3. Back bearing of a line is equal to
Options- A. Fore bearing ± 90°
- B. Fore bearing ± 180°
- C. Fore bearing ± 360°
- D. Fore bearing ± 270° Discuss
Correct Answer: Fore bearing ± 180°
- 4. If a tacheometer is fitted with an anal-latic lens
Options- A. additive constant is 100, multiplying constant is zero
- B. multiplying constant is 100, additive constant is zero
- C. both multiplying and additive constants are 100
- D. both multiplying and additive constants are 50. Discuss
Correct Answer: multiplying constant is 100, additive constant is zero
- 5. The orthographical projection of a traverse leg upon the reference meridian, is known as
Options- A. departure of leg
- B. latitude to the leg
- C. co-ordinate of the leg
- D. bearing of the leg. Discuss
Correct Answer: latitude to the leg
- 6. While measuring a chain line between two stations A and B intervened by a raised ground
Options- A. vision gets obstructed
- B. chaining gets obstructed
- C. both vision and chaining get obstructed
- D. all the above. Discuss
Correct Answer: vision gets obstructed
- 7. While rotating the theodolite in the horizontal plane, the bubble of the bubble tube takes up the same position in its tube, it indicates
Options- A. the rotation axis is vertical
- B. the trummion axis is horizontal
- C. the line of collimation is perpendicular to vertical axis
- D. none of the above Discuss
Correct Answer: the rotation axis is vertical
- 8. Which one of the following mistakes/errors may be cumulative + or - :
Options- A. bad ranging
- B. bad straightening
- C. erroneous length of chain
- D. sag. Discuss
Correct Answer: erroneous length of chain
- 9. In a constant level tube, size of the bubble remains constant because upper wall is
Options- A. of relatively larger radius
- B. of relatively smaller radius
- C. flat
- D. convex downwards. Discuss
Correct Answer: of relatively larger radius
- 10. The ratio of the angles subtended at the eye, by the virtual image and the object, is known as telescope's
Options- A. resolving power
- B. brightness
- C. field of view
- D. magnification. Discuss
Correct Answer: magnification.
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