Civil Engineering Survey MCQ Test - Set 13 - ObjectiveBooks

# Practice Test: Question Set - 13

1. The instrument used for accurate centering in plane table survey is
(A) Spirit level
(C) Plumbing fork
(D) Trough compass

2. Accuracy of elevation of various points obtained from contour map is limited to
(A) 1/2 of the contour interval
(B) 1/4th of the contour interval
(C) 1/3rd of the contour interval
(D) 1/5th of the contour interval

3. The curvature of the earth's surface, is taken into account only if the extent of survey is more than
(A) 100 sq km
(B) 160 sq km
(C) 200 sq km
(D) 260 sq km

4. The theodolites used for making tacheometric observations by optical wedge system, are
(A) Provided with stadia hairs in front of eye piece
(B) Not provided with stadia hairs at all
(C) Fitted with a glass wedge inside the telescope
(D) Fitted with a glass wedge in front of telescope

5. When the bubble of the level tube of a level, remains central
(A) Line of sight is horizontal
(B) Axis of the telescope is horizontal
(C) Line of collimation is horizontal
(D) Geometrical axis of the telescope is horizontal

6. An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as
(A) Contour line
(B) Horizontal equivalent
(C) Contour interval

7. Accurate measurement of deflection angles with a transit not properly adjusted may be made by
(A) Setting the Vernier A at zero at back station and then plunging the telescope
(B) Setting the Vernier A at zero at back station and turning the instrument to the forward station
(C) Taking two back sights one with the telescope normal and the other with telescope inverted
(D) None of these

8. Pick up the correct statement from the following:
(A) The framework which consists of a series of connected lines, the lengths and directions of which are found from measurements, is called a traverse
(B) The system of a series of lines which forms a circuit which ends at the starting point, is called a closed traverse
(C) The traverse that starts from a point already fixed in some survey system and ends on another such point, is called a controlled traverse
(D) All the above

9. The reduced level of a floor is 99.995 m, the staff reading on the floor is 1.505 m. If the inverted staff reading against the roof is 1.795 m, the floor level below the slab, is
(A) 3.290 m
(B) 3.300 m
(C) 3.275 m
(D) 2.790 m

10. Probable systematic error in precise levelling as recommended by International Geodetic Association should not exceed (where ‘k’ is in kilometers.)
(A) ± 0.1 √k mm
(B) ± 0.2 √k mm
(C) ± 0.1 √k
(D) 0.2 √k mm

11. The resection by two point problem as compared to three point problem
(A) Gives more accurate problem
(B) Takes less time
(C) Requires more labour
(D) None of the above

12. The co-ordinate of a point measured perpendicular to the parallel, is called
(A) Total latitude
(B) Meridian distance
(C) Total departure
(D) Consecutive co-ordinate

13. The bearing of C from A is N 30° E and from B, 50 metres east of A, is N 60° W. The departure of C from A is
(A) 50 m
(B) 50 √3 m
(C) 25 √3 m
(D) 25 m

14. If h1 and h2 are the differences in level between ground and the formation levels, m is the slope of the sloping sides. D is the distance between the cross sections then, Prismoidal correction for a level section is
(A) D/2m(h1 - h2)
(B) D/3m(h1 - h2)
(C) D/6m(h1 - h2)2
(D) D/6m(h1 - h2)3

15. Pick up the correct statement from the following:
(A) The eyepiece plays no part in defining the line of sight
(B) The diaphragm plays no part in defining the line of sight
(C) The optical centre of the objective plays no part in defining the line of sight
(D) None of these

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