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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.
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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
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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.
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109. The reduced bearing of a line is N 87? W. Its whole circle bearing is
A. 87?
B. 273.?
C. 93?
D. 3?.
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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.
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111. The horizontal angle between true meridian and magnetic meridian, is known
A. bearing
B. magnetic declination
C. dip
D. convergence.
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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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