Surveying Online Civil Engineering Test - ObjectiveBooks

Practice Test: Question Set - 27

1. The probable error of the adjusted bearing at the middle is
(A) ½ r √n
(B) ⅓ r √n
(C) ¼ r √n
(D) ⅕ r √n

2. If whole circle bearing of a line is 120°, its reduced bearing is
(A) S 20° E
(B) S 60° E
(C) N 120° E
(D) N 60° E

3. For locating a distant object visible from two transit stations, the method usually preferred to, is
(A) Angles and distances from transit stations
(B) Angles from two transit stations
(C) Distance from two transit stations
(D) Angle from one transit station and distance from the other

4. Accuracy of 'fix' by two point problem, is
(B) Good
(C) Not reliable
(D) Unique

5. If the area calculated form the plan plotted with measurements by an erroneous chain, accurate area of the plan is
(A) Measured area × (Length of chain used/Nominal chain length)
(B) Measured area × (Nominal chain length/ Length of chain used)
(C) Measured area × (Nominal chain length/ Length of chain used)2
(D) Measured area × (Length of chain used/Nominal chain length)2

6. A tape of length ‘l’ and weight ‘W’ kg/m is suspended at its ends with a pull of ‘P’ kg, the sag correction is
(A) l3W2/24P2
(B) l2W3/24P2
(C) l2W2/24P3
(D) lW2/24P

7. Contour lines of different elevations can unite to form one line, only in the case of
(A) A vertical cliff
(C) A water shed line
(D) A hill top

8. The sag of 50 m tape weighing 4 kg under 5 kg tension is roughly
(A) 0.043 m
(B) 0.053 m
(C) 0.063 m
(D) 0.083 m

9. If the length of a transition curve to be introduced between a straight and a circular curve of radius 500 m is 90 m, the maximum perpendicular offset for the transition curve, is
(A) 0.70 m
(B) 1.70 m
(C) 2.70 m
(D) 3.70 m

10. The longitudinal section of the surface of bubble tube is
(A) Straight
(B) Circular
(C) Parabolic
(D) Elliptic

11. A traverse deflection angle is
(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

12. The least count of a Vernier scale is
(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

13. The tangent to the liquid surface in a level tube, is parallel to the axis of the level tube at
(A) Every point of the bubble
(B) Either end of the bubble
(C) The mid-point of the bubble
(D) No where

14. The slope correction may be ignored if
(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)

15. The whole circle bearing of a line is 290°. Its reduced bearing is
(A) N 20° E
(B) N 20° W
(C) N 70° W
(D) S 70° E

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