大工13春《测量学》在线作业2（Great works, 13 spring, surveying, online homework, 2）.docVIP

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大工13春《测量学》在线作业2（Great works, 13 spring, surveying, online homework, 2）.doc

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大工13春《测量学》在线作业2（Great works, 13 spring, surveying, online homework, 2）

大工13春《测量学》在线作业2（Great works, 13 spring, surveying, online homework, 2） Great works, 13 spring, surveying, online homework, 2 Total score of test paper: 100 Radio examination Judgment question First, radio questions (10 questions, 60 points) V The weight of the 1. observations is determined by (). The observation times of unknown quantities of A. Error size in B. observations Instrument accuracy adopted by C. D. or more is wrong Full marks: 6 In the 2. horizontal angle observation, in order to overcome the fatigue hysteresis phenomenon of fretting helical spring, observation should be adopted. A. always alidade one direction of rotation B. jiggle screw uses intermediate part Each time the C. turns, the micro helix ends with the precession D. alidade to uniform rotation Full marks: 6 3. theodolite in the station, when placed on the middle and back leveling, through the middle reaches (). The level of A. in the center of the dial and the station on the same plumb line B. instrument and station in the center of the spiral on the same plumb line C. instrument base center line and station on the same vertical line D. or more is wrong Full marks: 6 4. by the construction of the automatic Anping level, we can see that when the bubble of the round level is in the center, it can reach (). A. telescope collimation axis level B. readings on the horizontal axis of the telescope C. allows the telescope to look at the axis level by means of a compensator D. or more is wrong Full marks: 6 5. when the horizontal angle is observed, the position of the transform disk is required between each measurement, and the purpose is (). A. changes the dial reading of the starting direction The influence of eccentricity of B. reduction disk C. is easy to check for gross error of observation The influence of D. reduction plate on ruling error Selected questions: D Full Score: 6 points 6. calibration theodolite collimation axis (to). A. makes the collimation axis perpendicular to the horizontal ax