In an adjusted level, when the bubble is central, the axis of the bubble tube be

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Question
In an adjusted level, when the bubble is central, the axis of the bubble tube becomes parallel to
Options
A. line of sight
B. line of collimation
C. axis of the telescope
D. None of these.

Correct Answer

line of sight

Surveying problems

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4. Magnetic bearing of a survey line at any place
Options
A. remains constant
B. changes systematically
C. varies differently in different months of the year
D. is always greater than true bearing.

5. Reduced bearing of a line is an angle between
Options
A. north line and given line measured clockwise
B. north line and given line measured anticlockwise
C. east or west and the given line
D. given line and the part of the meridian whether N end or S end, lying adjacent to it.

6. If d is the distance between equidistant odd ordinates, the Simpson's rule for the areas, is
Options
A. [h₁ + h_n + 2(h₃ + h₅ + ... + h_{n - 2}) + 4(h₂ + h₄ + ... + h_{n - 1})]
B. [h₁ + h_n + 2(h₃ + h₅ + ... + h_{n - 2}) + 4(h₂ + h₄ + ... + h_{n - 1})]
C. [h₁ + h_n x 2(h₂ + h₄ + ... + h_{n - 1}) + 4(h₃ + h₅ + ... + h_{n - 2})]
D. [h₁ + h_n + 2(h₃ + h₅ + ... + h_{n - 2}) + 4(h₂ + h₄ + ... + h_{n - 1})]
E. none of these.

7. The magnetic meridian at any point, is the direction indicated by a freely suspended
Options
A. magnetic needle
B. and properly balanced magnetic needle
C. properly balanced and uninfluenced by local attractive force
D. magnetic needle over an iron pivot.

9. ?, ? are the horizontal angles measured at the ends of a base line AB to a hill top whose angle of elevation from station A is ?�. The height of the hill top above the trunnion axis of the theodolite station, is
Options
A.
B.
C.
D.

10. If V is the speed of a locomotive in km per hour, g is the acceleration due to gravity, G is the distance between running faces of the rails and R is the radius of the circular curve, the required super elevation is
Options
A.
B.
C.
D.

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