Correct Answer:
Is minimum if the staff is held truly normal to the line of sight.
Note: This Question is unanswered, help us to find answer for this one
2. In chain surveying field work is limited to
Answer
Correct Answer:
Linear measurements only
Note: This Question is unanswered, help us to find answer for this one
3. For true difference in elevations between two points A and B, the level must be set up
Answer
Correct Answer:
At the exact mid point of A and B
Note: This Question is unanswered, help us to find answer for this one
4. One of the tacheometric constants is additive, the other constant, is
Answer
Correct Answer:
Multiplying constant
Note: This Question is unanswered, help us to find answer for this one
5. Two concave lenses of 60 cm focal length are cemented on either side of a convex lens of 15 cm focal length. The focal length of the combination is
Answer
Correct Answer:
30 cm
Note: This Question is unanswered, help us to find answer for this one
6. The radius of curvature of the arc of the bubble tube is generally kept
Answer
Correct Answer:
100 m
Note: This Question is unanswered, help us to find answer for this one
7. 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
Answer
Correct Answer:
2.828
Note: This Question is unanswered, help us to find answer for this one
8. An ideal vertical curve to join two gradients, is
Answer
Correct Answer:
Parabolic
Note: This Question is unanswered, help us to find answer for this one
9. Pick the correct statement from the following :
Answer
Correct Answer:
All these
Note: This Question is unanswered, help us to find answer for this one
10. Pick up the correct statement from the following:
Answer
Correct Answer:
The eyepiece plays no part in defining the line of sight
Note: This Question is unanswered, help us to find answer for this one
11. The difference of level between a point below the plane of sight and one above, is the sum of two staff readings and an error would be produced equal to
Answer
Correct Answer:
Twice the distance between the zero of graduation and the foot of the staff
Note: This Question is unanswered, help us to find answer for this one
12. In quadrantal bearing system, back bearing of a line may be obtained from its forward bearing, by
Answer
Correct Answer:
Changing the cardinal points, i.e. substituting N for S and E for W and vice-versa
Note: This Question is unanswered, help us to find answer for this one
13. The most reliable method of plotting a theodolite traverse, is
Answer
Correct Answer:
By independent co-ordinates of each station
Note: This Question is unanswered, help us to find answer for this one
14. If S is the length of a subchord and R is the radius of simple curve, the angle of deflection between its tangent and sub-chord, in minutes, is equal to
Answer
Correct Answer:
1718.9 S/R
Note: This Question is unanswered, help us to find answer for this one
15. In levelling operation
Answer
Correct Answer:
When the instrument is being shifted, the staff must not be moved and when the staff is being carried forward, the instrument must remain stationary
Note: This Question is unanswered, help us to find answer for this one
16. The real image of an object formed by the objective, must lie
Answer
Correct Answer:
In the plane of cross hairs
Note: This Question is unanswered, help us to find answer for this one
17. The sensitiveness of a level tube decreases if
Answer
Correct Answer:
Both viscosity and surface tension are increased
Note: This Question is unanswered, help us to find answer for this one
18. The angle between two plane mirrors of optical square, is
Answer
Correct Answer:
45°
Note: This Question is unanswered, help us to find answer for this one
19. An imaginary line joining the points of equal elevation on the surface of the earth, represents
Answer
Correct Answer:
Contour line
Note: This Question is unanswered, help us to find answer for this one
20. The main principle of surveying is to work
Answer
Correct Answer:
From whole to the part
Note: This Question is unanswered, help us to find answer for this one
