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- Question
The least count of a vernier scale is
Options- A. sum of the smallest divisions of main and vernier scales
- B. value of one division of the primary scale divided by total number of divisions of vernier scale
- C. value of one division of vernier scale divided by total number of divisions of primary scale
- D. none of these.
- Correct Answer
- value of one division of the primary scale divided by total number of divisions of vernier scale
- 1. Cross-staff is used for
Options- A. setting out right angles
- B. measuring contour gradient
- C. taking levels
- D. measuring distances
- E. none of these Discuss
- 2. The whole circle bearing of a line is 290°. Its reduced bearing is
Options- A. N 20° E
- B. N 20° W
- C. N 70° W
- D. S 70° E Discuss
- 3. The main plate of a transit is divided into 1080 equal divisions. 60 divisions of the vernier coincide exactly with 59 divisions of the main plate. The transit can read angles accurate upto
Options- A. 5"
- B. 10"
- C. 15"
- D. 20"
- E. 30" Discuss
- 4. The slope correction may be ignored if
Options- A. the slope of the ground is less than 3°
- B. to slope of the ground is say 1 in 19
- C. both (a) and (b)
- D. neither (a) nor (b) Discuss
- 5. Removal of parallax, may be achieved by focussing
Options- A. the objective
- B. the eye-piece
- C. the objective and the eye-piece
- D. none of these. Discuss
- 6. The Random errors tend to accumulate proportionally to
Options- A. numbers of operations involved
- B. reciprocal of operations involved
- C. square root of the number of operation involved
- D. cube root of the number of operation involved. Discuss
- 7. A traverse deflection angle is
Options- A. less than 90°
- B. more than 90° but less than 180°
- C. the difference between the included angle and 180°
- D. the difference between 360° and the included angle. Discuss
- 8. In case of reduction of levels by the height of instrument method,
Options- A. ? B.S. - ? F.S. = difference in R.L.S of the first station and last station
- B. ? (R.L. + I + F.S.) - first R.L = ? (H.I. + No. of R.L.s.)
- C. both (a) and (b) above
- D. neither (a) nor (b). Discuss
- 9. The tangent to the liquid surface in a level tube, is parallel to the axis of the level tube at
Options- A. every point of the bubble
- B. either end of the bubble
- C. the mid-point of the bubble
- D. no where. Discuss
- 10. If ? is the angle of deflection of the curve, T1 and T2 are its points of tangencies, the angle between the tangent at T1 and long chord T1 T2 will be
Options- A.
- B.
- C.
- D. ?
- E. 2 ?. Discuss
Surveying problems
Search Results
Correct Answer: setting out right angles
Correct Answer: N 70° W
Correct Answer: 20"
Correct Answer: both (a) and (b)
Correct Answer: the objective and the eye-piece
Correct Answer: square root of the number of operation involved
Correct Answer: the difference between the included angle and 180°
Correct Answer: neither (a) nor (b).
Correct Answer: the mid-point of the bubble
Correct Answer:
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