1)A traverse line is being measured by theodolite and subtense bar.At one station, the theodolite's horizontal axis is 1.54m above the ground mark and the angle subtended by a 2-m subtense bar placed at the next station is 4025". The subtense bar is 1.25m above the ground mark, and the vertical angle measured to it by the theodolite is (+)13°28.Determine: a)the horizontal distance from the theodolite at A to the subtense bar at B b)the vertical distance from the horizontal axis of the theodolite to the center of the bar c)the difference in elevation between the two ground stations
1)A traverse line is being measured by theodolite and subtense bar.At one station, the theodolite's horizontal axis is 1.54m above the ground mark and the angle subtended by a 2-m subtense bar placed at the next station is 4025". The subtense bar is 1.25m above the ground mark, and the vertical angle measured to it by the theodolite is (+)13°28.Determine: a)the horizontal distance from the theodolite at A to the subtense bar at B b)the vertical distance from the horizontal axis of the theodolite to the center of the bar c)the difference in elevation between the two ground stations
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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1)A traverse line is being measured by theodolite and subtense bar.At one station, the theodolite's horizontal axis is 1.54m above the ground mark and the angle subtended
by a 2-m subtense bar placed at the next station is 4025". The subtense bar is 1.25m
above the ground mark, and the vertical angle measured to it by the theodolite is
(+)13°28.Determine:
a)the horizontal distance from the theodolite at A to the subtense bar at B
b)the vertical distance from the horizontal axis of the theodolite to the center of the bar
c)the difference in elevation between the two ground stations
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