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Civil Engineering Objective Questions { Surveying }

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

107. Prismatic compass is considered more accurate than a surveyor's compass, because
A. it is provided with a better magnetic needle
B. it is provided with a sliding glass in the object vane
C. its graduations are in whole circle bearings
D. it is provided with a prism to facilitate reading of its graduated circle

108. If whole circle bearing of a line is 1200, its reduced bearing is
A. S 20? E
B. S 60? E
C. N 120? E
D.N 60? E.

109. The reduced bearing of a line is N 87? W. Its whole circle bearing is
A. 87?
B. 273.?
C. 93?
D. 3?.

110. The magnetic meridian at any point, is the direction indicated by a freely suspended
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.

111. The horizontal angle between true meridian and magnetic meridian, is known
A. bearing
B. magnetic declination
C. dip
D. convergence.

112. Imaginary line passing through points having equal magnetic declination is termed as
A. isogon
B. agonic line
C. isoclinic line
D. none of these.

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