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- Question
The lens equation
is applicable
Options- A. when the thickness of the lens is small
- B. only to conjugate distances along the principal axis
- C. the computed quantities are accurate enough for geometrical optics of simple distances
- D. all the above.
- Correct Answer
- all the above.
- 1. The bearing of line AB is 152° 30' and angle ABC measured clockwise is 124° 28'. The bearing of BC is
Options- A. 27° 52'
- B. 96° 58'
- C. 148° 08'
- D. 186° 58' Discuss
- 2. While working on a plane table, the correct rule is :
Options- A. Draw continuous lines from all instrument stations
- B. Draw short rays sufficient to contain the points sought
- C. Intersection should be obtained by actually drawing second rays
- D. Take maximum number of sights as possible from each station to distant objects. Discuss
- 3. In geodetic surveys higher accuracy is achieved, if
Options- A. curvature of the earth surface is ignored
- B. curvature of the earth surface is taken into account
- C. angles between the curved lines are treated as plane angles
- D. none of these. Discuss
- 4. Two contour lines, having the same elevation
Options- A. cannot cross each other
- B. can cross each other
- C. cannot unite together
- D. can unite together. Discuss
- 5. Correction per chain length of 100 links along a slope of ? radians, is
Options- A. 100 ?2
- B. 100 ?
- C. 100 ?3
- D. 100 ?-1. Discuss
- 6. If ? is the angle of deflection of a simple curve of radius R, the length of its long chord, is
Options- A. R cos
- B. 2R cos
- C. R sin
- D. 2R sin .
Discuss
- 7. A transit is oriented by setting its vernier A to read the back azimuth of the preceding line. A back sight on the preceding transit station taken and transit is rotated about its vertical axis. The vernier A reads
Options- A. azimuth of the forward line
- B. bearing of the. forward line
- C. back bearing of the forward line
- D. equal to 360°-azimuth of the forward line. Discuss
- 8. Contours of different elevations may cross each other only in the case of
Options- A. an over hanging cliff
- B. a vertical cliff
- C. a saddle
- D. an inclined plane. Discuss
- 9. Determining the difference in elevation between two points on the surface of the earth, is known as
Options- A. levelling
- B. simple levelling
- C. differential levelling
- D. longitudinal levelling. Discuss
- 10. In case of a direct vernier scale
Options- A. graduations increase in opposite direction in which graduations of the main scale increase
- B. smallest division is longer than smallest division of the main scale
- C. graduations increase in the same direction in which graduations of the main scale increase
- D. none of these. Discuss
Surveying problems
Search Results
Correct Answer: 96° 58'
Correct Answer: Draw short rays sufficient to contain the points sought
Correct Answer: curvature of the earth surface is taken into account
Correct Answer: can unite together.
Correct Answer: 100 ?
Correct Answer: 2R sin
. Correct Answer: azimuth of the forward line
Correct Answer: an over hanging cliff
Correct Answer: differential levelling
Correct Answer: graduations increase in the same direction in which graduations of the main scale increase
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