Surveying Objective Type Questions and Answers - Set 07 - ObjectiveBooks

# Practice Test: Question Set - 07

1. If the focal length of the object glass is 25 cm and the distance from object glass to the trunnion axis is 15 cm, the additive constant
(A) 0.1
(B) 0.4
(C) 0.6
(D) 1.33

2. Diurnal variation of magnetic declination is
(A) Greater at equator than nearer the poles
(B) Less at equator than nearer the poles
(C) Less in summer than in winter
(D) Same at all latitudes and during different months

3. Rankine's deflection angle in minutes is obtained by multiplying the length of the chord by
(A) Degree of the curve
(B) Square of the degree of the curve
(C) Inverse of the degree of the curve
(D) None of these

4. In case of a double line river, contours are
(A) Stopped at the banks of the river
(B) Stopped at the edge of the river
(C) Drawn across the water
(D) Drawn by parabolic curves having their vertex at the centre of the water

5. The branch of surveying in which both horizontal and vertical positions of a point, are determined by making instrumental observations, is known
(A) Tacheometry
(B) Tachemetry
(C) Telemetry
(D) All the above

6. Refraction correction
(A) Completely eliminates curvature correction
(B) Partially eliminates curvature correction
(C) Adds to the curvature correction
(D) Has no effect on curvature correction

7. Pick up the correct statement from the following:
(A) In the earth's magnetic field, a magnetic needle rests in magnetic meridian
(B) The angle between the true meridian and the magnetic meridian is called magnetic variation
(C) One end of the magnetic needle supported at its centre of gravity tends to dip down towards the nearer magnetic pole of the earth
(D) All the above

8. If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for
(A) Horizontal sights
(B) Inclined sights upward
(C) Inclined sight downward
(D) None of these

9. The conventional sign shown in below figure represents a
(A) Bridge carrying railway below road
(B) Bridge carrying road below railway
(C) Bridge carrying road and railway at the same level
(D) A level crossing

(A) The vertical circle is usually continuous from 0° to 359°
(B) The readings increase when the telescope is elevated in the face left position
(C) The readings decrease when the telescope is elevated in the face right position
(D) All the above

11. Select the correct statement.
(A) A contour is not necessarily a closed curve
(B) A contour represents a ridge line if the concave side of lower value contour lies towards the higher value contour
(C) Two contours of different elevations do not cross each other except in case of an overhanging cliff
(D) All of the above statements are correct

12. Pick up the correct statement from the following:
(A) If the slope of the curve of a mass diagram in the direction of increasing abscissa is downward, it indicates an embankment
(B) The vertical distance between a maximum ordinate and the next forward maximum ordinate represents the whole volume of the embankment
(C) The vertical distance between a minimum ordinate and the next forward maximum ordinate represents the whole volume of a cutting
(D) All the above

13. Pick up the correct statement from the following:
(A) The diaphragm is placed between eyepiece and the objective but nearer to the former
(B) The diaphragm is placed between the eyepiece and objective but nearer to the later
(C) The outer component of the objective is a double-convex lens of crown glass
(D) All the above

14. If the whole circle bearing of a line is 270°, its reduced bearing is
(A) N 90° W
(B) S 90° W
(C) W 90°
(D) 90° W

15. Pick up the correct statement from the following:
(A) The length of the brass handle is included in the length of chain
(B) The handles are on swivel joints to prevent twisting of the chain
(C) The fifth tag from either end of the chain is numbered 5
(D) All the above

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