Surveying and Levelling MCQ Questions - Set 14 - ObjectiveBooks

Practice Test: Question Set - 14

1. The suitable contour interval for a map with scale 1 : 10000 is
(A) 2 m
(B) 5 m
(C) 10 m
(D) 20 m

2. In an adjusted level, when the bubble is central, the axis of the bubble tube becomes parallel to
(A) Line of sight
(B) Line of collimation
(C) Axis of the telescope
(D) None of these

3. Ranging is an operation of
(A) Reconnaissance
(B) Judging the distance
(C) Determination of slope
(D) Establishing intermediate points between terminals

4. Locating the position of a plane table station with reference to three known points, is known as
(A) Intersection method
(C) Resection method
(D) Three point problem

5. If f1 and f2 are the distances from the optical centre of a convex lens of focal length ‘f’ to conjugate two points P1 and P2 respectively, the following relationship holds good
(A) f = f1 + f2
(B) f = ½ (f1 + f2)
(C) 1/f = 1/f1 + 1/f2
(D) None of these

6. If the intercept on a vertical staff is observed as 0.75 m from a tachometer, the horizontal distance between tachometer and staff
(A) 7.5 m
(B) 25 m
(C) 50 m
(D) 75 m

7. Simpson's rule for calculating areas states that the area enclosed by a curvilinear figure divided into an even number of strips of equal width, is equal to
(A) Half the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets, and thrice the sum of the even offsets
(B) One-third the width of a strip, multiplied by the sum of two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets
(C) One-third the width of a strip, multiplied by the sum of two extreme offsets, four times the sum of the remaining odd offsets, and twice the sum of the even offsets
(D) One-sixth the width of a strip, multiplied by the sum of the two extreme offsets, twice the sum of remaining odd offsets and four times the sum of the even offsets

8. The ratio of the distances at which a stated length can be distinguished by the telescope and the human eye, respectively, is called
(A) Brightness of telescope
(B) Magnification of telescope
(C) Resolving power of telescope
(D) None of these

9. The radius of a simple circular curve is 300 m and length of its specified chord is 30 m. The degree of the curve is
(A) 5.73°
(B) 5.37°
(C) 3.57°
(D) 3.75°

10. If ‘R’ is the radius of the main curve, ‘θ’ the angle of deflection, ‘S’ the shift and ‘L’ the length of the transition curve, then, total tangent length of the curve, is
(A) (R - S) tan θ/2 - L/2
(B) (R + S) tan θ/2 - L/2
(C) (R + S) tan θ/2 + L/2
(D) (R - S) tan θ/2 + L/2

11. A series of closely spaced contour lines represents a
(A) Steep slope
(B) Gentle slope
(C) Uniform slope
(D) Plane surface

12. In an internal focusing telescope
(A) The objective is at a fixed distance from the diaphragm
(B) The focusing is done by the sliding of a divergent lens
(C) The focusing divergent lens is situated at about the middle of the tube
(D) All the above

13. During secular variation of magnetic meridian at different places
(A) Range of oscillations is constant
(B) Period of oscillation is constant
(C) Range and period of oscillation both vary
(D) Period of oscillation only varies

14. Correction per chain length of 100 links along a slope of α radians, is
(A) 100 α2
(B) 100 α
(C) 100 α3
(D) 100 α-1

15. While viewing through a level telescope and moving the eye slightly, a relative movement occurs between the image of the levelling staff and the cross hairs. The instrument is
(A) Correctly focussed
(B) Not correctly focussed
(C) Said to have parallax
(D) Free from parallax

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